In Two if by Sea in Boston by Mary Morgan, siblings Ben and Bekka are off on another adventure with their news reporter dad. . . this time to Boston, Massachusetts! The kids are off on a scavenger hunt along The Freedom Trail in Boston as undercover detectives. As they hunt for mysterious clues, they uncover a plot hanging in the stairway of an old brick church and encounter danger like they never have before. 150 pages, softcover.