Sonic and Knuckles burst into the Hidden Palace. Art by Richard Elson.

The Hidden Palace is a building on the Floating Island. In ancient times, the royal family ruled the island from here. The most notable room in the palace is the Emerald Chamber, home to the Chaos Emeralds and the island's current controls. Other rooms lead off from this central chamber, including living quarters, the Guardian Emerald and a store for Guardian Robots, amongst other things.

Hidden Palace originally appeared in Sonic & Knuckles (although it is in the beta edition of Sonic the Hedgehog 2) and was included in Sonic the Comic as part of the Sonic 3 & Knuckles story arc.


Although the area is technically seen every time the Emerald Chamber is featured, the Zone was only named in one story:

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