MARY POPE OSBORNE is the author of the New York Times #1 bestselling Magic Tree House series, as well as coauthor of the Magic Tree House Fact Tracker series with her husband, Will, and her sister, Natalie Pope Boyce.

For more information, visit the Magic Tree House website at MagicTreeHouse.com!

AG FORD is a New York Times bestselling children's book illustrator and recipient of two NAACP Image Awards. He grew up in Dallas with his mom, his dad, two sisters, and one brother. He majored in illustration at the Columbus College of Art and Design. He lives with his family in Frisco, Texas. Visit him online at agfordillustration.com.

Jack and Annie are caught out in the rain in the most dangerous Magic Tree House mission yet!

Jack and Annie are on a mission! When the magic tree house whisks them back to Galveston, Texas, in 1900, they find out that a big storm is coming. But even though there is rain and wind, no one believes there is any danger. As the storm grows, seawater floods the city. Now everyone needs help! Jack and Annie have a little bit of magic and a lot of hope--but will it be enough?

Did you know that there's a Magic Tree House book for every kid?

Magic Tree House: Perfect for readers who are just beginning chapter books

Merlin Missions: More challenging adventures for the experienced reader

Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures

If you're looking for Merlin Mission #30: Haunted Castle on Hallow's Eve, it was renumbered as part of the rebrand in 2017 as Merlin Mission #2.