Speculation (Paperback) by Edmund Jorgensen

Andrew Wrangles has a decision to make. His best friend Sothum, a philosophical and financial genius, has just died and left him a choice in his will: ten million dollars or a sealed envelope.

Andrew's wife Cheryl doesn't see this as much of a choice. She wants Andrew to take the money, and what little patience she has for his speculating about what could be worth more than ten million dollars is wearing thin very quickly.

But as Andrew digs deeper into the secret life that Sothum lived, he finds more questions than answers. Does the envelope contain the fate of a vanished mutual friend? The answer to a terrible cosmic riddle? The confession to a crime? Is Sothum just playing a final private joke? Or has Andrew become a pawn in a game--a game that Sothum died playing against a bigger opponent than Andrew can imagine?