Nightseer

Young Kelios has a dream of her mother being killed by the evil witch Harque, and the dream unfortunately is realized. Her prophetic powers are discovered, and Kelios is sent to wizardry training on the isle of Astrantha, where she is destined to exact revenge by stalking the dreaded witch. Reissue.

From The Publisher:

An evil witch murdered her mother when she was only five, but now that Keleios has grown into her own magical powers, revenge will be sweet. But with that power comes the dreaded demonmark, offering undreamed of abilities and luring her with the dark side of magic. Is avenging her mother's death worth sacrificing her soul?

"A breath-snatching excursion into a complex realm of dark sorcery and intrigue". -- Richard Knaak, author of the Dragonrealm series

"Sorcerous intrigues, revenge, spellcraft...and rapid-fire action. Clever. Refreshing. Lively". -- Dragon