Deception and promises in Genshin Impact: how to talk to the yumkasaurus

Deception and promises in Genshin impact — a peace quest involving a strange yumkasaurus from the Pyro region. Someone's pet is blocking the path to treasure and won't back down, tricking travelers into giving them food. Find out why the yumkasaurus is deceiving people and where its owner really went.

From this guide you will learn how to complete the quest Deception and promises from the chain "In the footsteps of the chosen one of dragons". We'll show you where to find the strange yumkasaurus and how to talk to him to get the chest and the secret achievement The Last Good.

How to start the quest Deception and promises

Make sure all the conditions from the list are met to start the Deception and Promises quest:

reach 28 adventure ranks;
visit the region Natlan;
complete the peace mission "The Lost Children of the Forest".

Visit the hidden cave among the rocky mountains on Tetikpak Peak by finding the age by the river and interact with the Dendro Dragon lying near the descent.

After this, the required quest Deception and Promises will appear in the general journal - you can proceed to the walkthrough and set tracking on the mission stages.

Walkthrough of Deception and Promises in Genshin Impact

In the cave, the Traveler and Paimon meet a strange yumkasaurus, who blocks the way to the treasure and refuses to give it up. Try to befriend him and take the luxurious chest - to do this, you will have to establish and offer treats.

Find a way to talk to the yumkasaurus

After failing to understand the speech of the yumkasaurus, go deeper into the cave and down to the pond, where you can move into another saurianIn this form, return to the strange little beast and talk to him again, then you will find out that he is simply hungry.

Feed the yumkasaurus

Become the character again - the Saurian's Soul Beacon will remain in the same place, so that when using it again, you don't have to return to the pond. Interact with the animal and the Inventory window will open, offering a large selection of what to feed the strange Jumkasaurus. In human form, offer the dragon raw meat - He will really like the treat, but he still won’t move from his place.

Try talking to the Yumkasaurus again, assuming the form of Dendrosaurian. It seems he is simply scamming travelers and tricking them into giving him treats without giving up the chest.

Let the Zavrian companion take the chest

Talk to Paimon and decide to play against the rules - give your pet a command "Forward!", so that he would steal the treasure. Look inside and get a note from the previous owner of the saurian. He specifically trained the dragon to deceive travelers in order to receive food in return, since the owner himself died and can no longer feed his friend.

Watch the final cutscene - The Traveler will bring the leader of the Crown Descendants tribe to the cave and tell him what happened. Wayne will take the baby under his wing, despite the actions of his deceased owner.

This will be the end of the quest, but you can feed the yumkasaurus meat again before leaving to get the secret achievement "The Last Good".

The Last Good achievement in Genshin Impact

After completing the quest "Deception and Promises" share food with the yumkasaurus blocking your way again. Then you will be able to unlock the achievement The Last Good from the category "Wonders of the World". Reward: 5 source stones.

Awards

Upon completion of the Deception and Promises side quest, you will be able to earn the following rewards:

We hope this guide helped you talk to the yumkasaurus and complete the Deception and Promises quest in Genshin Impact. If you need help or advice, leave questions on the topic in comments below. You can read other interesting guides on Genshin Impact on the pages: news.