Eythreal

When lost inside a forbidden forest, Timothy Huntsinger encounters an unworldly creature. This creature convinces him to travel below Earth, where the boy finds himself surrounded by an endless number of books for him to choose from. On opening the chosen book, Timothy discovers that his decisions and actions alone affect the book's content. And each decision starts a chain of events that could affect his world for all eternity.
Soon, a world of much consequence, full of magic and quests, must be reckoned with for Timothy to progress through the book.
Progress through this book Timothy must if he wants to finish it and hope to bring back what has been lost to him.
At his side will be allies, each one faithful to every choice and action Timothy makes, each one willing to give their life to the boy and the finishing of the book.