TWELVE-YEAR-OLD KEVIN, A Korean American math whiz, is shocked beyond belief when a young man, complete with bow and arrows, crash lands in his bedroom. And that's just the beginning. The man, called Skillful Archer, claims to be a legendary ruler from ancient Korea. While Kevin tries explaining contemporary life to the man he nicknames Archie, the young ruler teaches Kevin about focusing his thoughts in an attempt to help him return to his kingdom. There's not a moment to lose as Kevin uses Korean history and folktales, math, and the Chinese Zodiac to help his friend travel back through time before the Year of the Tiger ends. If Archie can't get home, history will be forever changed.