Descripcion del libro:
**The mind cage**: David Marin risks his reputation and government career when he makes a plea for Wade Trask, a brilliant scientist condemned to be executed for sedition. Trask is experimenting with transplanting the mind and nervous system of one animal into the body of another. When Marin goes to see him, the nearly-mad scientist suddenly blasts Marin with his gas gun, and now Marin's identity is encased in Trask's body!.
