The Elves and the Otterskin

This is an old fantasy book that belonged to my dad. Ivarr is tired of being stuck at home, so when he gets the chance to work for a witch, he takes it. He finds that he really enjoys the work, until a powerful necromancer kills his teacher. Ivarr is stuck in the Other World, but he's not leaving until he gets revenge. Then he meets up with a group of elves who need his help. It seems the same necromancer, named Lorimer, has gotten them into trouble too.

Wicked trolls, a disembodied head, an enchanted maze, and a fire-breathing dragon -- this book has it all. It was good fun. I understand that she wrote more, but they might be hard to find. Recommended, and thanks to Dad. 3.5 stars