Haunted Depths Zone

The Haunted Depths Zone is a location that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. It is a Zone located amongst the Eastwatch Islands.

Sonic: Mega Drive - The Next Level
Sonic, Tails, Knuckles, and Amy's would be led to this Zone during their search for the Ancient Gears. Knuckles mentioning the area's similarity to a maze led Sonic to believe splitting up would be wiser for covering more ground. While the hedgehog proceeded onward by himself, Tails, Knuckles, and Amy were attacked by and struggled against a fire-breathing badnik, which would eventually be defeated when Amy used her Piko Piko Hammer to attack a light bulb attached to the badnik's tail.

Not long after this victory, Sonic would find himself being pursued by Dr. Eggman via a drill vehicle through an underground passageway in the Zone. Fortunately for Sonic, Eggman's mech would be rendered nonfunctional when the doctor inadvertently ran it into a massive boulder, thus forcing Eggman to retreat and allowing Sonic access to another Ancient Gear.