The Valley of Fear

A cipher message arrives from Fred Porlock, a pseudonymous agent of Professor Moriarty. After Porlock sends the message, however, he changes his mind for fear of Moriarty's discovering that he is a traitor. He decides not to send the key to the cipher, but he sends Holmes a note telling of this decision.

© 2018 Interactive Media (ספר דיגיטלי ): 9781787246232

תאריך הוצאה

ספר דיגיטלי : 5 ביולי 2018