In the comic series of Sonic the Hedgehog published by Archie Comics , Knuckles is the eighteenth guardian of the Floating Island, which is also called Angel Island. He is also member of the Brotherhood of Guardians , a secret society that defends the island and is made up of Knuckles' predecessors/ancestors. In keeping with the incorporation of elements of the Sonic the Hedgehog cartoon into the series, Knuckles lives on the planet Mobius. Knuckles is supported in his efforts by the Chaotix , and often works together with Sonic the Hedgehog and the Freedom Fighters.
In Sonic 3D Blast , Knuckles joined Sonic and Tails on their trip to Flicky Island . Having heard legends that the Flickies on the island held the key to finding the Chaos Emeralds , the group journeyed to there to find these birds. When they got there, however, the island was in pandemonium because of Dr. Robotnik who had built a base on the island from where he turned the Flickies into Badniks and used them to search for the Chaos Emeralds on the island.  As such, Knuckles helped Sonic along Tails to find the Chaos Emeralds while Sonic saved the Flickies and defeated Robotnik.