Esperanza may mean hope to some, but to interplanetary agent Ben Jolson, it means nothing but trouble. Esporanza is the name of the gal-wry's combination super resort and cemetery planet. Jolson, the ultimate undercover man who can impersonate anyone down to the last physical detail, is sent there to track down what is snatching high military personnel. But he meets his match with the strange mixed bag of characters he encounters, including the operators of a geriatrie health center modeled after a prison farm, a gauntlet of larcenous big game huaters (who prefer to work in-doors) a cigar-smoking big-stakes nonepoly playing gangland com-(contaued on back up)