Blue Treasure Cave Escape

You work for a company that is engaged in the restoration of old books and documents. Once you got a strange book, which was referred to the cave with treasures. The book says that this cave has blue color, which appeared on a lot of curse on it. You do not believe in the curse, so we decided to find this cave. You have entered into it, but to go back can not. You're trapped and you need to escape.