Crius and the night of fright

"After escaping their eight-legged enemies, the Olympians are set for another adventure in a region called Peloponnese. They are off to find Apollo's twin sister, Artemis, who was captured by the Cronies and separated from her brother. But the Titan Crius, who rules the area, has Artemis under a special spell that is making her sleep, which doesn't make a rescue easy! Can the Olympians manage to sneak away from Crius and his pesky Pandi--warriors with ears that can hear for miles--and rescue a sleepy Artemis for good?"--Dust jacket flap.