From the author of the Pegasus series comes a spellbinding first book in a new fantasy series for fans of Rick Riordan and Shannon Messenger following two cousins whose summer vacation gets swept away by a storm that lands them on the lost island of Atlantis. The last way that Riley Evans wanted to spend spring break was studying whales on the family sailboat in the middle of the Bermuda Triangle. With only her dad, aunt, and annoying...