Skip to content
LuvemBooks
LuvemBooks

Who it's for. Who should skip it. What to read next.

Dennis McKenna

About This Author
Reviewed

Read Time

6 min read

Our age bandAdult
Reader rating
4.5 · 372 Amazon ratings, as of Nov 2026
reader ratings, not a LuvemBooks score
Buy on Amazon
Curated & edited by

LuvemBooks Editorial

How we create our reviews →
Share This Review
Front cover

Our review

Brotherhood of the Screaming Abyss

Brotherhood of the Screaming Abyss: My Life with Terence McKenna by Dennis McKenna Review: An Ethnobotanist's Memoir

by Dennis McKenna

Dennis McKenna's memoir chronicles his childhood alongside his famous brother, Terence, and their shared journey into psychedelics and philosophy. It is designed for readers interested in ethnobotany, countercultural history, and the personal dynamics of the McKenna family.

Buy on Amazon
Our age band: Adultpsychedelic drug use · family tension

LuvemBooks Verdict

Best for

Its detailed focus on Dennis's academic perspective and the 1971 La Chorrera expedition makes it essential for readers seeking a grounded account of the McKenna brothers' early years.

Worth it if

Worth reading if you want to understand the personal and academic origins behind their collaborative ethnobotanical work.

Skip if

Skip it if you are looking for a comprehensive primary biography of Terence McKenna's visionary philosophy, as the narrative remains firmly anchored in Dennis's scientific perspective.

Where reviewers agree and split

Readers rate it 4.5 on Amazon. The reviews we read that discuss it in depth split on some points:

  • Negative

    Reader Ocean · Book blog: not well written, only interesting to devoted fans of Terence McKenna

  • Positive

    Door of Perception · Book blog: engaging account of the McKenna brothers' quest for higher knowledge and truth

    Overall verdicts are our summary of each review we read, from its headline, rating and conclusion.

    Reader Ocean finds the memoir unengaging and only suitable for devoted fans, while Door of Perception praises it as an enjoyable account. Reader Ocean notes the tension between the title and the book's focus, with a reviewer observing they expected more of Terence.

    Sources: Reader Ocean, Door of Perception, Psypressuk
    4.5from 372 Amazon ratings, as of Nov 2026— reader ratings, not a LuvemBooks score

    Ask LuvemBooks

    Was this helpful?

    Brotherhood of the Screaming Abyss chronicles Dennis McKenna's formative years in western Colorado and his pivotal 1971 Amazon expedition alongside his brother Terence through a rigorous scientific lens. While it serves as an essential, grounded companion to Terence's own memoirs, the focus remains firmly on Dennis's ethnopharmacological perspective rather than offering a broad biography of his brother. Readers seeking the personal and academic origins of their collaborative work will find it highly rewarding, though those expecting a primary exploration of Terence's teachings may find the focus too narrow.
    Is it worth reading?
    The book delivers detailed personal and scientific reflections that appeal to readers interested in ethnobotany and countercultural history. It is essential for understanding the grounded origins of their work, though those seeking a comprehensive biography of Terence may find the perspective too narrow.
    Similar books
    Readers who enjoy detailed personal accounts of family dynamics and countercultural history might also appreciate Gerald Durrell's Birds, Beasts and Relatives, Jeannette Walls' The Glass Castle, or Cameron Crowe's The Uncool. These titles explore complex familial relationships and the formative experiences that shape a writer's worldview.
    Who should read this?
    This memoir is designed for readers interested in ethnobotany and the personal dynamics of the McKenna family. It specifically appeals to those seeking the grounded, scientific origins behind the brothers' public work and collaborative texts. It is also recommended for academic audiences or historians examining the cultural backdrop of 1950s and 1960s western Colorado.
    What age is it for?
    The book is written for adults and contains detailed accounts of psychedelic drug experimentation and academic career struggles. It is not intended for younger readers due to its mature thematic focus and complex scientific discussions.
    About Dennis McKenna
    Dennis McKenna is the author of this memoir, which chronicles his experiences with psychedelic exploration and his relationship with his brother Terence McKenna. In the book, McKenna reflects on decades of investigation in ethnobotany and his academic career alongside his brother's more public philosophical pursuits.
    What are the main themes?
    The memoir explores the McKenna brothers' shared intellectual trajectories and first encounters with altered states of consciousness. Key themes include the intersection of family relationships and scientific inquiry, the cultural shift of the 1960s, and how experimental work evolved into formal academic study.
    How does this compare to Terence's work?
    This memoir operates as a direct companion to Terence McKenna's True Hallucinations, offering a complementary viewpoint. While Terence's work focuses on his own visionary experiences, Dennis provides the perspective of a scientist pursuing a more conventional academic path.
    Summarize this book

    Summarize this book

    Dennis McKenna's memoir details his childhood in 1950s western Colorado and his shared journey into psychedelics and philosophy with his brother Terence. It meticulously chronicles their adolescent adventures, their pivotal 1971 La Chorrera expedition, and Dennis's subsequent career as an ethnopharmacologist. The narrative functions as a scientific counterpart to Terence's own autobiographical work, focusing on the personal experiments that informed their joint research.

    Follow up

    What happens at La Chorrera?
    How does Dennis's career factor in?

    Synthesized from verified book data & published reviews · How we review

    Ask LuvemBooks

    What would you like to know about Brotherhood of the Screaming Abyss?

    Answers come from our editorial notes on this book. If we haven't covered something, we'll say so.

    Readers often ask

    Our Review

    We review the evidence: published critics, reader verdicts and BookTube reviews, gathered and weighed with AI assistance and edited by LuvemBooks, rather than one reader's first-hand take.

    Dennis McKenna's memoir chronicles his childhood alongside his famous brother, Terence, and their shared journey into psychedelics and philosophy.
    Brotherhood of the Screaming Abyss: My Life with Terence McKenna_main_0

    What is the book about?

    Brotherhood of the Screaming Abyss functions as a detailed autobiographical account of Dennis McKenna's life, centering on his complex relationship with his brother, Terence. The narrative explores their formative years in western Colorado during the 1950s and 1960s, establishing the familial and cultural backdrop for their later scientific pursuits.

    What does the book cover?

    The text meticulously chronicles the brothers' adolescent adventures, documenting their first encounters with alcohol and drugs alongside the specific people and ideas that shaped their intellectual trajectories. It details their 1971 expedition to La Chorrera in the Amazon, where their quest for exotic hallucinogens evolved into a curiosity-driven exploration of time, life, and mind, while also covering Dennis's subsequent academic career as an ethnopharmacologist.
    Brotherhood of the Screaming Abyss: My Life with Terence McKenna_gallery_1

    Who is it for?

    The book is designed for readers who want to understand the scientific and philosophical foundations behind the McKenna brothers' public work. It specifically appeals to those interested in ethnobotany, the history of psychedelic research, and the personal dynamics of a family dedicated to the study of consciousness.
    Readers looking for a primary biography of Terence McKenna may find the focus too narrow, as the narrative remains firmly anchored in Dennis's own perspective and scientific observations rather than Terence's public philosophy. Those seeking a purely academic treatise might also find the personal anecdotes and family histories distracting from the scientific content.

    Where it sits in the McKenna bibliography

    The memoir operates as a direct companion to Terence McKenna's own autobiographical account, True Hallucinations, which covers similar ground from a different angle. While Terence's work focuses on his own visionary experiences, Dennis provides the perspective of a scientist who pursued a more traditional academic path alongside his brother.
    The book also serves as essential background for their collaborative texts, such as The Invisible Landscape and Psilocybin: Magic Mushroom Grower's Guide, by detailing the personal experiments that informed their joint research.

    What the reception indicates

    Critical and reader feedback highlights a specific tension between the memoir's title and its actual narrative focus. While the book centers on Dennis McKenna's own scientific career and family history, one Reader Ocean reviewer noted that the account simply does not contain enough of Terence McKenna to satisfy expectations set by the title.
    This reception suggests the book functions best as a companion to Terence's work rather than a standalone biography of him. It points readers toward those seeking the grounded, scientific origins of psychedelic research rather than those expecting a primary exploration of Terence's public philosophy.

    Sources & Further Reading

    The key facts and claims in this review are grounded in the retrieved, verified sources listed below.

    1. 1
      Dennis McKenna — author profile

      Dennis McKenna, LuvemBooks

    2. 2
      Dennis McKenna Brotherhood of the Screaming Abyss — DOP

      doorofperception.com

    3. 3
      Brotherhood of the Screaming Abyss a book by Dennis McKenna, Bruce Damer, and Luis Eduardo Luna - Bookshop.org US

      bookshop.org

    4. 4
      Brotherhood of the Screaming Abyss: My Life with Terence Mckenna - Dennis McKenna - Google Books

      books.google.com

    5. 5
      Reader Ocean

      Reader Ocean

    6. 6
      Psypressuk

      Psypressuk

    Age & Reading Level

    Our age band

    Adult

    Our age band groups books for browsing; it isn't an age a review gave.

    Browse all adult books

    Content to know about

    psychedelic drug use
    family tension

    Skip if you are looking for a comprehensive primary biography of Terence McKenna's visionary philosophy

    From our readers

    Reader reviews

    Be one of the first readers to answer.

    Read it? Was it right for you?

    Books like Brotherhood of the Screaming Abyss

    Curated picks for readers who enjoyed Brotherhood of the Screaming Abyss, with our reasoning for each match.

    More by Dennis McKenna

    On Amazon

    Food of the Gods

    Terence McKenna and Dennis McKenna

    Co-authored by Terence and Dennis McKenna, this sweeping study of ethnobotany and the history of psychoactive plants offers the deeper scientific and cultural context behind the interests the brothers pursued in Brotherhood of the Screaming Abyss: My Life with Terence McKenna by Dennis McKenna.

    This collaborative work by Terence and Dennis McKenna surveys the botanical origins of psychoactive plants and their role in human history, the same questions that drew the brothers to the Amazon. Readers of Brotherhood of the Screaming Abyss: My Life with Terence McKenna by Dennis McKenna who want the academic and historical roots of the brothers' explorations will find the detailed ethnobotanical research here invaluable.

    If you liked Brotherhood of the Screaming Abyss

    In our catalogue

    Birds, Beasts and Relatives

    Gerald Durrell

    Chronicles a boyhood immersed in nature and wildlife on Corfu, echoing the McKenna brothers' early fascination with the natural world and unconventional family dynamics in Brotherhood of the Screaming Abyss: My Life with Terence McKenna by Dennis McKenna.

    In our catalogue

    The Glass Castle

    Jeannette Walls

    Presents a raw memoir about an unconventional upbringing and the loyalty among siblings, echoing the profound bond between the McKenna brothers in Brotherhood of the Screaming Abyss: My Life with Terence McKenna by Dennis McKenna.

    In our catalogue

    The Uncool

    Cameron Crowe

    A coming-of-age memoir set in 1970s rock and roll, sharing the era and counterculture backdrop of Brotherhood of the Screaming Abyss: My Life with Terence McKenna by Dennis McKenna.

    Not your thing?

    In our catalogue

    Greenlights

    Matthew McConaughey

    Offers a more accessible, philosophically driven memoir with similar themes of nature and wandering, but replaces dense ethnobotanical detail with reflective storytelling.

    Discussion

    Reader comments