In the Land of Leadale, Vol. 6 (light novel)

High elf adventurer Cayna was exploring a dungeon and reached the lowestfloor where
she was reunited with Opus, an old friend from her gaming days.Their reunion was
short-lived, however, since Cayna immediately lostconsciousness after suddenly
exhausting her magical power. Opus takes Caynaand her companions Clofia and Cloffe
to his hideaway to rest and recoverwhile he prepares for an imminent event, but what
exactly is he so busilypreparing for...?