Angel Island is a location that appears in the Sonic the Hedgehog comic series published by IDW Publishing. It is a floating landmass above Sonic's world that is kept afloat by the Master Emerald; without it, the island will inevitably plummet from the sky. Both the island and its Emerald are safeguarded by Knuckles the Echidna, the island's main inhabitant.
In the past, Knuckles the Echidna has guarded Angel Island. However, the island has been unguarded at various point whenever Knuckles, for one reason or another, had to leave his post. Most recently, Angel Island was left to itself after Knuckles left to command the Resistance.
The Fate of Dr. Eggman
Eventually, Angel Island's airspace got invaded by the Egg Fleet and its forces, which were spearheaded by none other than Neo Metal Sonic. In no time at all, Neo Metal Sonic managed to establish his forces on the island, put Angel Island's airspace into lockdown with his Egg Fleet, and secure the Master Emerald for himself inside a fortification he built around the Master Emerald's shrine.
The Battle for Angel Island
Following his conquest of Angel Island, Neo Metal Sonic converted Angel Island into a gigantic flying fortress. During a thunderstorm however, Sonic the Hedgehog and his allies arrived in a battleship to liberate Angel Island. Although the Egg Fleet shot the battleship down on its way to Angel Island, all its passengers evacuated in time and began their appointed missions around Angel Island: team one (Burning Blaze) and team two (Amy, the Chaotix, Tails, Silver, Tangle, Rouge and Whisper) began working on breaking the Egg Fleet's control over Angel Island while team three (Sonic and Knuckles) confronted Neo in order to secure the Master Emerald and rob the Egg Fleet of its commander. Meanwhile, Shadow left the group to do his own thing. However, Sonic and Knuckles ran into trouble when Neo used the Master Emerald to turn into Super Neo Metal Sonic during their confrontation.
While Sonic and Knuckles fought Super Neo Metal Sonic, team one and team two focused on removing the two wing units attached to Angel Island's shoreline. However, the former team was unable to make much progress, so Tails sought a smarter approach. Meanwhile, Burning Blaze managed to destroy the island's left wing unit, losing her transformation in the process. Meanwhile, Tails and Silver took control of an Egg Fleet battleship, which they used to destroy Angel Island's last wing unit. The Resistance and their allies subsequently regrouped onboard the battleship Tails had hijacked. At the same time, Shadow came to Sonic and Knuckles' rescue and forced Super Neo Metal Sonic to de-transform. However, Neo Metal Sonic managed to successfully copy Shadow's bio-data, which he used in conjunction with Sonic's bio-data (which he already had) and the Master Emerald to transform into an even bigger threat: Master Overlord. This metal monstrosity scooped up the Master Emerald, effectively cutting Angel Island off from its power, which meant that Angel Island was on the verge of falling into the ocean.
- Angel Island is based on the location of the same name that first appeared in the Sonic the Hedgehog 3 video game.