Ruby Red, by Kerstin Gier
First published in Germany in 2009, this is the first book in a time travel trilogy. Gwyneth, 16, is a bit of a klutz. But this time, her dizzy spells mean her world is about to change, and that she is the twelfth in a circle of time travelers, not her cousin and classmate Charlotte. Gwen meets an 18th century Count, her great-great grandmother, and a missing cousin, all in the company of 18-year-old Gideon, a more experienced time traveler. Ugly school uniforms, a best friend who researches time travel and history while Gwen sleeps, a mother who’s too busy to listen or explain, gorgeous historical costumes, and a variety of London settings make for a book that’s easy to like. Suspense, humor, adventure, and some romance will have you looking forward to translations of Sapphire Blue and Emerald Green.