139 Dungeon Expedition [2]

Following behind the princess, the group entered what appeared to be a large cave, going along with the other groups of students from their class.

Some students opened their eyes wide in amazement as they stepped into the dungeon.

Transparent prismatic stalactites hung above their heads as if threatening to fall down and skewer them at any second.

However, the dense mana concentration surrounding the stalactites caught the students' eye.

It was concentrated to the point where a faint rainbow-coloured glimmer was visible from them.

"Are these… Mana crystals?"

Marisa stared blankly at the crystals, mesmerized by the constantly changing colours.

Lillianna smiled and nodded her head.

"Yes, those are indeed mana crystals.

While not considered top-class treasures, Mana crystals still held significant value in the price market.