Oh What a Knight! (OMG! #3)

A funny, fast-paced adventure! Vesper and Aster need Excalibur to save the world. At the top of Glastonbury Tor, they find an elevator down to the enchanted realm of Camelot, where Arthur has been waiting for this day. The elderly King and his loyal knights snap to attention – at last they have a quest! But Excalibur will only serve its chosen master. What would anyone do with such power?