Ruby Red is an impossible-to-put-down YA novel written by German author Kerstin Gier, and translated by Anthea Bell. Sixteen-year-old Gwyneth has spent her life playing second fiddle to her beautiful cousin, Charlotte, who has been trained since early childhood for the special role she is expected to play. But suddenly it becomes clear that Charlotte isn't the special one, after all. Gwyneth is the Ruby, one of twelve people in the world with the gene that enables time travel--but, unlike Charlotte, she has had no instruction in how to deal with the time traveling episodes that strike without warning. This is the first in a trilogy; the second book is Sapphire Blue, and the third, Emerald Green, will be released in October 2013. If you liked The Time-Traveler's Wife, you'll love this one.
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