Some people really go overboard for their anniversary -- especially spoiled, young Ivy Diggs, who vanishes during a crowded Fourth of July Lake Tahoe dinner cruise on the paddle wheeler Dixie Queen. It's also Elsie MacBean's 50th birthday celebration -- and almost turns out to be her last when Beanie finds herself embarking not only on a calamitous cruise, but also a murder investigation. The assumption is accidental drowning, but Beanie suspects otherwise.
