The Promises You Keep by Karen Marie Graham

Abandoned, alone, and running from her past, language arts teacher Sydney Mackenzie has found a place of solitude as she tries to find healing in forgetting. She is abruptly forced to turn and face her painful past, however, when Emily enrolls in her class and turns her peaceful world upside down. Can Sydney find a way to trust herself, and trust others again, before it's too late to save her student from a similar fate? Find out, in The Promises You Keep.