Waterfall Bergren Lisa T. (2011)

Gabriella has never spent a summer in Italy like this one. Remaining means giving up all she’s known and loved . . . and leaving means forfeiting what she’s come to knowand love itself. Most American teenagers want a vacation in Italy, but the Bentarrini sisters have spent every summer of their lives with their parents, famed Etruscan scholars, among the romantic hills. In Book One of the River of Time series, Gabi and Lia are stuck among the rubble of medieval castles in rural Tuscany on yet another hot, boring, and dusty archaeological site . . . until Gabi places her hand atop a handprint in an ancient tomb and finds herself in fourteenth-century Italy, in the middle of a fierce battle between knights of two opposing forces. She is rescued by the knight-prince Marcello Falassi, who takes her to his father’s castlea castle Gabi has seen in ruins in another life. Suddenly, her summer in Italy is much more interesting. But what do you do when your knight in shining armor literally lives in a different world?