The Dollhouse That Time Forgot is a novella written by Mike Ford. It was first published in 1997 and is the eleventh book in the Eerie, Indiana book series.
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When Marshall Teller buys Syndi a doll for her new dollhouse, one that looks uncannily like the new girl at school, he finds himself, little by little, growing smaller, until he can sneak into a dollhouse just like Syndi's.