Deep in the shadow of Garreg Mach lies Abyss, the underground den of Fódlan’s outcasts and home to the monastery’s secret fourth house, the Ashen Wolves. In this side story, you can freely explore Abyss, battle alongside four students from the Ashen Wolves house, take on new quests, and uncover the secrets that reside beneath the surface. Progress through the story to bring your four new subterranean students to the main story as recruitable units and enjoy the new classes, quests, paralogues, and activities that are also added with this DLC. – Part of Fire Emblem: There Houses Expansion Pass. DLC wave 4 will be available on February 12th 2020 in the US.