Embarking on Murder ((A Beanie and Cruiser Mystery)) by Sue Owens Wright

E just bought for herself, there's her constant, loyal basset hound companion Cruiser, and finally, there's the Fourth of July Lake Tahoe dinner cruise on the Dixie Queen with her daughter and best friend Sheriff Skip Cassidy. Not among her birthday presents is witnessing a confrontation between 23-year old child bride Ivy Diggs and her old-enough-to-be-her-very-rich-father Frank Diggs. Shortly after the fight Frank reports his wife missing, presumably haven accidentally fallen overboard. Needless to say, Beanie suspects murder and she puts her reporter skills to use as she discovers that there were a number of suspects all too willing to give Ivy a boost overboard, including some very unremorseful adult stepchildren.