The Thousand Orcs (Forgotten Realms: Hunter Blades No.1)

When Obould Many-Arrows and the united orc tribes band together with Gerti Orelsdottr and her frost giants, no one is safe. After a skirmish with the orcs almost ends in tragedy, Drizzt Do'Urden and the Companions join with Dagnabbit and a group of dwarves to warn nearby towns of the impending hordes.