Cold.

''Ah!'' Isaac cried out and instantly removed his leg from the stairs. He glanced at his feet and saw that his shoes were frozen!

The moment he took a step, he felt the incredible pain of his bones getting frozen, and that made him startled.

'How could I feel pain... This is so strange.' He rubbed his painful feet, but the pain had already disappeared.

It was like he only felt pain if his leg touched the stairs.

''Are you alright?!'' Luna came next to him without even caring if there were more traps.

''Yeah.'' Isaac grabbed a rock from his pouch and threw it towards the stairs, but while the rock was flying, suddenly it started freezing until it became completely covered in ice.

''Why did it turn into ice?'' Luna frowned. The temperature around the island is quite warm. Warm enough to make her sweat, but for some reason, the stairs are completely opposite!

They are freezing cold, enough to kill someone in seconds.