Who is trying to frighten the guests away from Mr. Mutt's beachfront motel? And why, you might ask? The second case for Lewis' Sherlocky hound will not only keep readers guessing--trying to link up a lipstick warning in one room, a trick bed in another, a jellyfish in the swimming pool, a ""green, slimy thing"" at dark windows--but also surprise them with its fat-out-of-the-fire ending. The culprit turns out to be young Andy Mutt, who unwittingly gives himself away in the course of guiding Mr. Sniff around. The motivation, also glimpsed on that tour? Andy, in crowded quarters with his three older brothers, wanted a room of his own. Clever--and illustrated in similarly fine style.