High druid of Shannara

Grianne Ohmsford has been banished to the harsh mirror-world of the Forbidding, and her only hope for rescue is her nephew Penderrin. But Pen is under siege as well; he and his parent are sought by the treacherous druid who took Grianne's place. Eluding death is only half the battle for Pen. To breach the Forbidding and bring Grianne back means finding the fabled Tanequil, and the talisman it alone can provide. That means journeying into the Inkrim, and striking a bargain more severe than Pen could ever imagine.