The Mysterious Disappearance of Kurt Kramer: Books 1 & 2 (Unabridged‪)‬

Seventeen-year-old Rachel is crazy about Kurt, but she's not sure the feelings are mutual. When his parents invite her and his best friend on a family vacation in Aruba, they encounter a strange object on the beach. Kurt disappears. He begins communicating in bizarre ways that shake his family to the core. Rachel realizes that he's stuck between worlds...and she's the only one who can bring him back.