Blood Brothers — Jill Morgan

It looks like the beginning of another perfect summer for Tucker. Until some mysterious strangers arrive at his father's farm looking for work. Tucker decides to investigate, and his sleuthing uncovers a sinister secret: the newcomers are harboring a pair of vampire twins. At first, Tucker is horrified, but slowly he gets pulled into their dark world. The twins desperately need a friend, and Tucker wants to do all he can to help them. But before Tucker knows it, he too is in grave danger. Because while one of the twins wants to be his friend, the other one only wants his blood . . .