A dagger could remove soil and small stones.
Gano and Billy couldn't make full use of it, but Gu Ning and Leng Shaoting could, because they didn't rely on a tool to do the work.
Leng Shaoting picked up the hammer, then smashed it towards the rocks on the ground. As soon as he hit it, the rocks on the ground broke into pieces, but the hammer wasn't damaged at all, which surprised Gano and Billy.
"Wow, this hammer is hard!" Billy said in amazement.
"It wasn't damaged at all," Gano said.
Gu Ning and Leng Shaoting didn't explain and Gano and Billy didn't ask about it either.
After that, they continued to dig holes.
Gu Ning used a dagger, but she was much quicker than Gano and Billy, which astonished them.
They admitted that Gu Ning was stronger than them, but they didn't want to seem useless, so they used greater strength.
After twenty minutes, they were exhausted, so Gu Ning told them to have a rest.
