Polarities Mod/The Very Hungry Worm

The Very Hungry Worm is a Pre-Hardmode book that is purchased from the for  after the Eater of Worlds is defeated. When used, it doubles the player's mining speed and boosts the damage of block-mining tools by 50%.

Trivia

 * Its title references the 1969 children's picture book The Very Hungry Caterpillar.