If you want Ah Puch's help with Itzamna, do something for him. Since he is stuck in the Underworld and he can't leave, you shall be his right hand.
One village in the human world is making too much racket! They think the noise will keep reapers away and it must stop. Quiet them down.
Talk to the first villager:

In order to stop this endless noise, distract those drummers with the cute puppy πΊthat the villager gave Diggy ...

... and then bring the villager their drum:

Talk to the second villager. Perhaps water π§will help them end this endless ruckus. Enter the following building ...

... and take care of it (after you fix the pipelines, please turn on the valve):

Talk to the third villager. Inside this house:

... there should be a spider. Please get it:

When you place a spider π·οΈ near those arachnophobic llamas π¦, they'll take care of this racket:

Talk to the fourth villager and bring a beehive π near those folks, that should stop the drumming:

Well done π. Now visit Ah Puch in his office and talk to him.

βοΈ Please note that you can get the Ah Puch's Feather in this location βοΈ