Philadelphia: J.B. Lippincott Company, . First Edition. Octavo (21.25cm.); original cloth in blue pictorial dust jacket; 284pp. Jacket extremities rather ragged with several smallish losses, including at spine ends touching text without loss of meaning, corners bumped, else Very Good only. Author's memoir of working as an F.B.I. undercover agent under the guise of a member of the Communist Party.