The Underground is a shop in Palia accessible at night from 6:00 PM to 3:00 AM. It's run by the villager Zeki, and features a static register shop, a rotating selection of furniture and decor not craftable in each set in Furniture Making, access to The Tower, and Zeki's Wondrous Machine. Players can play the Hotpot Minigame and access Zeki's Prize Wheel here as well!
Zeki has decided to allow Plush Trading in The Underground! Just get his permission, by completing the Trading Tips quest and earning his Trading Pass, so the trading booths will be available for use.
Each night in Palia there is a small rotating stock of furniture and decor available for purchase with Gold in Zeki's Grimalkin Underground. These include furniture infused with Flow like plumbing and electronics, rugs, and paintings.
Here is a list of all possible items with their Underground prices:
Actual selection may vary.
Trading
Trading booths are available to Players at any time, even if the rest of the Underground Market is closed.
Hotpot is a minigame that can be played to earn Gold. To play, interact with any open hotpot table in the underground during the Underground Market hours (6:00 PM to 3:00AM Palian Time). Up to four different Players can play at each hotpot table.
An additional Hot Pot table has appeared in the Underground
Zeki and Reth have procured another hotpot table in the Underground so that more Palians can play at once. It’s located next to one of the prize wheels.
Summer Stripe Decor Set
The following items are purchasable when featured in the Underground Black Market: Summer Stripe Bird Towel, Summer Stripe Waves Towel, Summer Stripe Ocean Towel, Summer Stripe Floral Towel, Summer Stripe Towel
The following items are purchasable from Reth's Register in the Underground Black Market: Summer Stripe Citrus Tea, Summer Stripe Floral Tea, Summer Stripe Herbal Tea, Summer Stripe Ocean Tea,Summer Stripe Juice Bar
Reth's Bar has had its name changed to Black Market Bar