Tiffany Rose, chief librarian on the cruise ship Seafarer's Memories, is having a bad day-actually, it's a bad cruise. She's just getting over the flu, her food is stolen, and library books are missing. Are these just practical jokes, or is there something sinister behind them? When Tiffany is thrown overboard and almost drowns, she realizes that there is more to these pranks than the other crew members realize...