Curse of the Abyss
Introduces the Curse of the Abyss from Made in Abyss to the Overworld's deep underground.
Strains of the 5th Layer
The Strains of the 5th Layer manifest in the form of complete sensory deprivation and loss of self. This is extremely dangerous, as a delver would not be able to heed their surroundings when under the Strains, leaving them completely vulnerable and alone.
Star Compass & Field Meter
The Star Compass, a relic of the Abyss that points towards the bottom of the Abyss, where the Field is at its highest concentration. This property can be used by its owner to detect the Field's concentration, in general.
Strains of the 2nd Layer
The Strains of the 2nd Layer manifest in the form of numbness and throbbing headaches. Visually, this manifests as throbbing blurred vision.
Derangement
It's commonplace for delvers to disappear for months with nary a message received by the surface. Even when a message somehow makes it past all the danger, the scribblings betray signs of derangement, as prolonged exposure to the field warps the mind.