He sought the advice of Harry Potter creator J.K. Rowling!
Ch-ch-check out the video (above) to find out how J.K.- and British fans of The Goonies- helped to make House Of Secrets what it is!
So what did the super successful author have to say about the finished product? She wrote:
"A breakneck, jam-packed roller coaster of an adventure about the secret power of books, HOUSE OF SECRETS comes complete with three resourceful sibling heroes, a seriously creepy villainess, and barrel loads of fantasy and fear."
Nice! Though she did finish the quote with a JK, so we're really not sure if she liked it or not! LOLz!