Amora escaped from the
Valaskjalf Dungeons, and, seeking revenge against
Asgard, used an artefact called the Tuning Fork to summon the Lurking Unknown, a Fear Lord from the
Archipelago of Anguish and Redemption, to attack
Asgardia.
While
Thor and his allies battled the Unknown,
Loki and
Baldr the Brave tracked down Amora with the assistance of
Heimdall, and forced her to reveal how the Unknown could be banished. They then tracked down the tuning fork and rang it, returning the Fear Lord to his home dimension.