"Lost Our Lisa" is the twenty-fourth episode in the ninth season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on May 10, 1998. The episode contains the last appearance of the character Lionel Hutz. When Lisa learns that Marge cannot give her a ride to the museum and forbids her to take the bus, she tricks Homer into giving her permission. After Lisa gets lost, Homer goes looking for her and the two end up visiting the museum together. The episode is analyzed in the books Planet Simpson, The Psychology of the Simpsons: D'oh!, and The Simpsons and Philosophy: The D'oh! of Homer, and received positive mention in I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide.