Meg Mackintosh and the Case of the Curious Whale Watch - title #2: A Solve-It-Yourself Mystery (2) (Meg Mackintosh Mystery series)
by By Landon, Lucinda
Category: Juvenile Fiction , Mysteries & Detective Stories

Set aboard a whale-watch boat, this dual mystery involves Captain Quinn's hundred-year-old treasure map and the still-unfound treasure it leads to and the disappearance of the map midway through the voyage.