Com Hurri, The Detective, is overdue for a little rest and relaxation, so a cruise seems in order. Except it isn't what she expects. There are a lot of mysteries going on, and some of them are tied together. Read like a detective and see if you can solve the puzzles. All the necessary clues are there, but maybe a review of "Canterlot Wedding" may help you a little.
here is a link that goes with the story; https://youtu.be/1RvKoF9a7x4