The Dragon’s Teeth (The Ellery Queen Mysteries‪)‬

Eccentric multimillionaire Cadmus Cole hires Ellery Queen to investigate a case but won't say what it is. When Cole dies mysteriously at sea, Queen and his partner, Beau Rummell, must navigate a thicket of complications that includes a fifty-million-dollar legacy, two beautiful but avaricious women vying for the inheritance, a will with some odd provisions, and even a phony Ellery Queen.