Under Dark & Misty Ground (5E)

From the introduction: Journey deeper into the treacherous goblin kingdoms in search of Evanna, daughter of the House Rothenheimer. But beware or the Maelstrom will drag you into the dark plots that surround her. Why was her father assassinated? What secrets does she hold? Perhaps the answers lie below, in the dungeon beneath the ruined tower of Dzeebagd.