The Hidden Aethelgard: the Ancient Oak (Vol. 115)

Summary

In a secluded valley hidden beneath a canopy of golden leaves, a street-smart thief searching for a legendary key discovers a stone tablet written in a language older than the mountains that could summon a celestial leviathan that lives within the deep ocean. Pursued by a rogue celestial navigator who seeks to burn the stars, they must race against time before the last petal of the golden lotus drops into the basin.