If not for Aoi, they probably would've spent the better part of the afternoon searching Erythros' vast tower.
The tower in fact was not a tower, but a large and very tall hollow pillar erected at the west side of the island, amidst the forest and very close to the mountain chains at that side of the island. The pillar had had its space enormously expanded by similar but stronger and more numerous runes as that of yesterday's tent.
The trio consulted their wristbands which runes glowed in red but provided what they needed nevertheless. After showing a large holographic "I" and putting a minuscule but bright red "6" at the top left of itself –which Xenon figured out to be his school year and ranking respectively– the black wristband produced a holographic interface which hovered about half an inch over their wrist and was trimmed in complex, almost unnoticeable runes at the sides and edges.
