Chronicles of Oakhaven: the Red Signal (Vol. 98)

Summary

In a floating island suspended in a sea of violet clouds, a weary cartographer mapping a territory that changes every night discovers a velvet black thread that absorbs all light around it that could shatter the fragile peace treaty between warring kingdoms. Pursued by the Ash King, an ancient warlord entombed beneath the bedrock, they must race against time before the military vanguard crosses the river border.