The Colors of Madeleine

This is a tale of missing persons. Madeleine and her mother have run away from their former life and settled in a rainy corner of Cambridge (in our world). Elliot, on the other hand, is in search of his father, who disappeared on the night his uncle was found dead. As Madeleine and Elliot move closer to unraveling their mysteries, they begin to exchange messages across worlds - through an accidental gap that hasn't appeared in centuries. But even greater mysteries are unfolding on both sides of the gap...

Princess Ko's been bluffing about the mysterious absence of her father, desperately trying to keep the government running on her own. But if she can't get him back in a matter of weeks, the consequence may be a devastating war. So under the guise of a publicity stunt she gathers a group of teens - each with a special ability - from across the kingdom to crack the unsolvable case of the missing royals of Cello.