The myths and legends

When Aztec, milo's younger sister gets scouted out because of a book she found in a Romanian cave. She has to reunite with the one person she wants to avoid ,Milo, due to something that happened before he made the journey to Atlantis. How will he and his friends react to Aztec? Will they find out a few of Aztec's secrets? How will they react to when they find out what dangerous hobby she has? Will they be able to stop Aztec from doing the impossible?