The Silver Compass by Holly Kennedy

Fifteen years ago, Ellis Williams was seventeen, pregnant, abandoned by her father, and scared to death when she jumped off a Montana bridge. Then along came Louie, who saved her from shame with a beautiful lie. He changed several lives on that day. Now, recently widowed and with a troubled teenage daughter of her own, Ellis has returned to her childhood home, where life will catch her by surprise-and point her in new directions. 
 
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