The Devil's Arithmetic (Puffin Modern Classics) by Jane Yolen

30th Anniversary edition with a new introduction from the author 

Hannah is tired of holiday gatherings−all her family ever talks about is the past. In fact, it seems to her that's what they do every Jewish holiday. But this year's Passover Seder will be different−Hannah will be mysteriously transported into the past . . . and only she knows the unspeakable horrors that await.

Winner of the National Jewish Book Award

"A triumphantly moving book." --Kirkus Reviews, starred review