Fremy-thin bombs

"It's okay, Rolonia. I'll find it," Fremy said, producing a bomb in her hand. Unlike  her other explosives, this one was in the shape of a thin nail. She then threw it  below, the bomb slipping between the gaps of the rocks and finally stabbing the  very bottom. Then an explosive sound rang through the air as chunks of the rocky  hill were gouged out and blown to pieces.