"Wallace delivers a daunting vicarious experience to aficionados of extreme travel."
-- Booklist


"This remarkable book...is about the real thing: wilderness in all its sublime, terrifying splendor."
-- Miami New Times


"You'll swear you are reading a thriller novel."
-- Guernica

"Wallace...takes us upriver to a place very few outsiders have ever seen. But the more important journey here is into Wallace’s dark night of the soul."
-- The Boston Globe