The Ego Trip by Kimon de Greef review – a bizarre tale of psychedelic toads and hair raising treatments Kimon de Greef's book, The Ego Trip, is a scathing exposé of the darker side of the wellness industry.
At its center is Octavio Rettig, a charismatic figure who peddled toad venom as "indigenous medicine" to desperate people.
The story begins with the Sonoran desert toad, an amphibian that has lived in the Mexico Arizona border region for millions of years.