It’s an “If You Give a Mouse a Cookie” Party at Treehouse with acclaimed children’s book author Laura Numeroff. Meet Laura and hear her talk about her many books in the Simmons Storybook Theater, play some mouse and moose games around the Museum, and enjoy – what else – a cookie or a muffin and some milk in the Art Garden, too. Books by Laura will be for sale at Treehouse that night, but you can bring up to three of your favorites from home to have signed, if you’d like.