A Bridge Between Worlds (W.I.T.C.H. Chapter Books, #10) by Elizabeth Lenhard

Condition: excellent 

In Heatherfield, agents are investigating Elyon's disappearance, and the Guardians fear that their identities will be revealed. A cry for help from Elyon causes the girls to react and to travel through the Veil to Meridian. There, they find Elyon struggling with a startling discovery about her parents that could ruin her chances of happiness in her new world.

How can Elyon bridge the gap between her old life and her royal future?