“Well, the only way to find out is by trying to push it open, right?” added Meredith.

“Indeed. While I do so, you girls should back away a bit!” replied Gerald with a nod.

Based on the rumors his grandfather had heard from around the world—and subsequently told Gerald—treasures could usually be found hidden in places guarded by strange beasts or monsters.

The picture of the sun itself was discovered by his family’s ancestors within a cave that was located in a dense forest. It was guarded—