The Real Ghostbusters Pop-Up: The Birthday Ghost is a book released by Simon & Schuster Inc.
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From back of book:
Here are The Real Ghostbusters, Ray, Pete, and Egon, from the popular movie and animated cartoon show, only now they're busy busting a party-crashing poltergeist in The Birthday Ghost, a terrific pop-up book! Nothing can stop The Real Ghostbusters from cleaning up the town!