Through the Hidden Door is a 1987 young adult novel by Rosemary Wells.
It book was a runner-up for a 1988 Edgar Allan Poe Award.
[1] The book details the story of Barney Penniman, an awkward eighth-grader with a lisp who is attending a boarding school.
Barney deals with bullies and a headmaster who dislikes him, but finds friendship with a younger, also socially awkward student named Snowy Cobb.
The two boys unearth an amazing archeological find and secretly work to dig it up.