Do you know how to fortify your equipment now?
There are Fortification Craftsmen in all three capitals. Use the hotkey 'M' to open the Map, and a mallet marks the location of a Fortification Craftsman or Alchemist.
*Nia's Textbook is required to complete the quest. If this book is lost, a replacement can be purchased from the NPC Sprite Beginner's Guide Gildhorn near the Kaslow Portal. (Kaslow City 126, 271)