Willie and Howard — man and wife Willie and Quincy — cousins (in-law) Willie, wanton Quincy, without honor Howard, quite dead Result — a light-hearted treatment of the grim details, in the new Cock Robin Mystery Award winner. Howard, alive, has been a dull lubber, with the single virtue of being able to make money without benefit of discernible brains; dead, he is a challenge and an excitement. He is even a challenge to Quincy, who is a difficult fellow to challenge to any kind of sustained effort. Fortunately, Quincy is clever and full of plans. His only fault, as far as Willie can see, is a tendency to he fanciful where simplicity would suffice. There is Howard’s body to dispose of. Quincy’s plot is a trifle thick, though not without wit. It’s not Quincy’s fault when his plot takes an unexpected turn. It is the fault, in fact, of dear, dead Howard, whose capacity for deception and tricky commitments turns out to have been as unsavory as that of the cousins. Fletcher Flora has written a winning thriller of cousins who kiss and kill