Channel of the Grail: A Novel of Cathars, Templars, and a Nazi Grail Hunter

Even death cannot stop two hearts that beat as one.

In May 1939, German newspapers announced the untimely death of 35-year-old author Otto Rahn, applauding him as “comrade, decent SS-man and creator of outstanding historical-scholarly works.” But his Swiss lover Raymond knew that Otto had neither died accidentally nor as a member of the infamous SS.

Before the Nazis, Rahn had researched the medieval French Cathars, a heretical sect exterminated by war and the Inquisition, and he published h...