The Invincible Shovel (Light Novel) Vol. 3

It's smooth sailing as Alan and crew cross the ocean in search of the next orb. No challenge can withstand the might of the strongest miner in the world and his invincible shovel. Even the devoted anti-shovel lady knight Catria is beginning to lose hope of ever saving the world from shovel contamination. But in order to beat this monster, she may have to become one herself!