Overlord, Vol. 11 (light novel)

In search of the lost art of rune crafting,Ainz journeys to the land of the dwarves. Accompanied by Aura and Shalltear, hearrives only to find that the Dwarven Kingdom is beset by an invasion run bysomeone besides himself! He soon strikes a deal to obtain the secrets behind themaking of runes in return for assisting the natives in reclaiming their capital,but it may not be so easy when a legendary frost dragon stands in hisway!