The Ogma Stone

In the two years since Surt and his army of red giants were defeated, life in Orkney has been quiet. Too quiet for a he-witch like Sam Baron. Until a messenger arrives from Galaway—a mysterious realm whose gods, the Tuatha de Danann, pleaded with Odin to take their small islands into the Ninth Realm the same as Orkney. The news is dire—Balor, a famed Fomorian sorcerer has his malevolent gaze set on raising the Ogma Stone, an ancient tablet that holds the secrets to the gods' powers. Balor will stop at nothing to gain the stone and return the magic taken from his people by Odin.
To do so Balor must obtain one of the ancient treasures of Galaway, the Retaliator Sword, and use it to shed the blood of a royal offspring—one his sorceress has foreseen the return of. Could Eithan, an orphaned slave who roams the lands with Fenrir the wolf, be the true heir to the Vanirian throne? With the help of a shadow elf named Seeth, Sam and his closest allies must join forces...