This is book number 33 in the Magic Tree House series.
MERLIN HAS ASKED Jack and Annie to help on another Merlin Mission. This time they head back into history to Venice, Italy. With the help of a research book, a book of magic rhymes, and a set of mysterious instructions from Merlin, the heroes will save the beautiful city from a flood! Here’s another Magic Tree House book that will engage kids with history, magic, and nonstop action from beginning to end.