Guide to Critter Companionship

The Guide To Critter Companionship is a tool that prevents player attacks from harming critters. It is not an accessory and will work as long as it is in the player's main inventory. It is purchased from the Zoologist for.

Tips

 * It is useful to carry this item while wearing the Shield of Cthulhu. Without it, the shield's dash may be interrupted by bumping into a critter.
 * It may be useful to favorite this item by -clicking it, preventing it from being stashed in a chest accidentally.
 * This item is useful for the collection of various rare or risky Critters, including:
 * Prismatic Lacewings, which summon the Empress of Light boss if killed
 * Truffle Worms, the bait used to summon Duke Fishron
 * Ladybugs, which confer a negative luck penalty when killed

Trivia

 * The symbol on the book appears to be a Bunny.