The Spear Blade is one of thirty-five inns found in Novigrad and is staffed by the innkeeper and his daughter, Detchka. It is here that Geralt and Dandelion went after the bard's famous display below Vespula's balcony. Apparently the poet is well known as a deadbeat who doesn't pay his bar tabs, but the innkeeper lets them stay nonetheless.
At the inn, they meet Dainty Biberveldt, or rather, first meet Dudu who was masquerading as Dainty.