Interactive novel in which you can become a protagonist and write your own unique adventure. Choose your path, create your own story! If you are a book lover and always dreamed of becoming the hero of an exciting story, this is your chance! Choose yourself, your communication and your style. Chalk Door: Chapter 1 You and your friends find a hidden door in a treehouse that takes you to the magical and erous world of Colossal. Chalk Door: Chapter 2 You discover the two different tribes located in Colossal. Choose which one suits best for you?