Ambush at Torus Filney

Phobos and Cedric start a rumour about the Seal of Phobos to trap Caleb with a sand monster called Sandpit. He tries to find out whether or not there is a spy in the castle. In the B-story, the W.I.T.C.H do a performance at the school, but after discovering Caleb is in danger, they create Astral Drops. After the real girls leave, the Astral Drops ruin the performance.