Shadow Hunters — Robert A. Erickson

Fifteen-year-old twins Lenny and Cassy return to the Kingdom of Duscany to attend the Wizor Ball, but they must escape an insidious trap set by a dark force that has resurrected the baleful shadow wolves before they can save themselves and their friends from certain death.Cass rattled the objects littered there out of place. Her eyes enlarged, and a stern expression creased her normally placid face.“Cassandra is in serious trouble!” she cried.Lenny glanced out the tower window and did a double take. He opened the doors leading out onto the balcony and stared at the vast gray globe that now enclosed the Whelf Fen.“Guys, look out here,” he said. “This is incredible.”The others crowded around him, but only Scapita broke the silence. “I've never seen anything like this from the fen in all my years. If the man-thrall manages to break free of the Long Night, then this could be the end of the world.”“But that's my sister trapped in there,” Lenny whispered. “I've got to do something.”. . . the biggest “fault” in Erickson's tale is that we become so close to his characters that we don't want their story to end . . . -- USReview on The Wizor Fair