The Gastro-Canyon - A vast trench sprawls across the substructure, its floor patterned with massive, evenly spaced impressions. These are not preserved egg chambers but the negative spaces where something once rested—marks left behind by immense organic vessels now mysteriously absent. The scale and regularity of these voids evoke a reproductive system on a scale never recorded. The arrangement recalls a kind of biological procession, like eggs laid in sequence and harvested by unseen workers. And yet, none remain. The implication is unsettling: if the missing chambers were ever occupied, what could have removed them... and why?