The Witch and Her Daughter — C. Dale Brittain

This is an omnibus edition of "The Witch and the Cathedral" and "Daughter of Magic."
After twenty years as Royal Wizard of Yurt, Daimbert thinks he ought to have magic pretty well figured out. But spells aren't enough when his heart is broken, when monsters from the Land of Magic threaten a peaceful town, when he meets an intriguing witch, or when the next generation needs wizardly guidance--including a little girl who can already turn someone into a frog.