Ilse Witch (Voyage of the Jerle Shannara Series #1)

When a half-drowned elf is found floating in the seas of the Blue Divide, an old mystery resurfaces. Thirty years ago, an elven prince led an expedition in search of a legendary magic said to be more powerful than any in the world. Of all those who set out on that ill-fated voyage, not one has ever returned. Until now. The rescued elf carries a map covered with mysterious symbols–and Walker Boh, the last of the Druids, has the skill to decipher them. But someone else understands the ma…