Ride A Pet: open Yinyang Cave with Yin and Yang without confusing its rewards

Quick answer and requirements

Open Yinyang Cave by collecting one Yin piece and one Yang piece in Halloween. You need Rebirth 1 to enter through the pumpkin-ringed tree portal. Check your rebirth requirement in the panel before spending.

Step-by-step route

1. Enter Halloween and inspect the ground near Candy Drop-Off, the Trick or Treat houses, the cemetery above the cave, and the open space before the pumpkins.
2. Collect a half and identify the missing one. In-game messages distinguish Yin from Yang.
3. With both collected, return to the stone entrance and use its interaction to place them on the circular emblem.
4. Enter once the door opens and collect the ritual reward.

What to expect

This route lets you seek a Headless Egg, which gives Headless Horseman, but opening the cave does not guarantee the egg. Candy is another possible reward. No percentage is published here: the guide figures found lack checked primary confirmation.

Decisions and mistakes

Editorial recommendation: search for pieces while collecting candy nearby, rather than pausing all progression for the egg. Do not assume a half always occupies one exact spot or confuse this route with shop Halloween Eggs.

Success check and checklist

Halves collected → emblem completed → door opened → reward checked. Opening the door confirms a completed ritual, not a Headless Horseman reward. Deposit any Candy before it spoils.

Related reading: turn Candy into Tokens without losing your load.