He called himself X Man – X for unknown. Found dressed in a Roman toga, wandering the ruins of an old fort from Caesar’s day, X Man was thrown into a madhouse, his origins and real name impossible to discover. What is the strange connection between this supposed madman, a multi-headed sea creature discovered swimming in a Scottish loch, and a pair of rogues willing to kill to control the secret of the mysterious X Man? Archeologist Johnny Littlejohn braves sudden death to find out the shocking truth, drawing Doc Savage into the exciting quest in his fifth audiobook appearance. Chapters: #1 The Man in the Madhouse #2 The Scottish Spook #3 Novum Eboracum #4 The Man of Mystery #5 Mint #6 Delusion? #7 Death's Domain #8 Monster Wrapped in Mist #9 The Stygian Shore #10 Matthew Anthony, Lord Nade #11 Common Cause #12 Paroxysm #13 Faces on a Coin #14 Nepeta Catari #15 Wreck #16 Jungle Strange #17 Talking Drums #18 The Veil of Silence #19 The Imperator #20 Tribunal #21 Gladiatorial Combat #22 The Conque