The Forest: The Magical Forest Series (Book #2):

A cynical teenager. A magical forest. A chance to find hope. When a bitter teenaged boy discovers an impenetrable magic portal, he must get help from the girl he once bullied. Abused by his father and mistreated by his teachers, teenager Shane is growing more resentful about his life. But Shane's cynical worldview is challenged when he stumbles upon a hidden portal. On the other side, he finds a forest that transcends time, the very same forest he used to bully his fifth-grade classmate, Am...