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, as the shield's dash may be interrupted by bumping into a critter.
 * The Guide To Critter Companionship is useful for collecting rare or risky Critters, including:
 * Prismatic Lacewings, which summons the Empress of Light when killed;
 * Truffle Worms, the bait used to summon Duke Fishron;
 * Ladybugs, which gives a luck penalty when killed.
 * Any Gold Critter.

Trivia

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