Timmy Failure: Sanitized for Your Protection, or Timmy Failure 4, is the fourth Timmy Failure book by Stephan Pastis.
Plot[]
Timmy Failure’s mother forces him into traveling with Molly Moskins’ family to Chicago, causing chaos and Timmy and Molly running away.
They then stay at the Drakonian, a Chicago hotel, forcefully having to leave the place because they were not there with their parents. So Molly and Timmy get back in via costumes of Meriwether Lewis and Sacagawea.