Eleven-year-old Casey Grimes is stubbornly friendly, but he\'s eternally the new kid at Vintage Woods Middle School.
Casey and his little sister Gloria infiltrate Sylvan Woods, a secret forest society devoted to.
The forgotten sentry tree marks the border between his safe, suburban life and a fierce frontier.
Casey doesn\'t know why he\'s mostly-invisible, but when he scales a colossal oak, he discovers a fortress in its branches.
Students look right through him--and they\'re not faking.
Eleven-year-old Casey Grimes is stubbornly friendly, but he\'s eternally the new kid at Vintage Woods Middle School