MIRROR, MIRROR ON THE WALL
by STANLEY ELLIN 179 pages. Random House. $5.95.
In his earlier puzzlements, Ellery Queen used to enjoy tweaking amateur sleuths by stopping short of the final Byzantine solution long enough to issue a "Challenge to the Reader" to match clues and wits with the smug author. In his newest novel, Stanley Ellin goes Queen one better. He offers the reader a refund instead of a contest.
Mirror, Mirror on the Wall comes with the last pages bound by a yellow paper band, slim but snug, that boasts that anyone who "can...