More for fans of Asimov word/number fiddles than mystery-lovers: 30 mini-stories, all written for Gallery ("what is commonly known as a 'girlie' magazine") and all featuring an old storyteller named Griswold--an ex-spy/sleuth who tells his fellow Union Club cronies anecdotes with puzzle-solutions. The gimmicks, many of them tired beyond the call of duty, involve letter/number codes, puns, etymology, science trivia, literary/musical allusions, and such--familiar Asimov territory. None of the exploits is remotely believable or suspenseful. The attempts at humor are frail at best. So, except for a solid flicker of deduction now and again, there's minimal appeal here for detective-story fans--and aficionados of Asimovian games will find better, less padded collections elsewhere.