Eek! It's Halloween! is a 2002 Bear in the Big Blue House storybook.

It's Halloween and Bear is all dressed up for a costume party at the Big Blue House. Tutter, however, is afraid of Halloween and hasn't dressed up. Bear shows Tutter that while Halloween can seem rather spooky, there are a lots of fun things about it too.

This board-book combines original illustrations with photographs of the characters from the program. Like Luna's Night, this book glows-in-the-dark.