The Mysterious Mr. Moon (Paperback)

Peter and Allison crept as close as they dared. Mr. Moon was crouched on his knees at the base of a large tree. The light was playing back and forth over the undergrowth. He was looking something Nobody, but nobody comes to stay in Maple Bay after September, so when a mysterious stranger checks into their parents' inn, Allison and Peter Maetindale are naturally suspicious. Mr Moon eats parsnips, spends all day in his room and won't let anyone into it--even to make his bed. Obviously, he's up to no good--but can they find out what he's plotting before it's too late?