Sonic The Hedgehog #91

Consumed by her own power, Blaze the Cat has lost control of her mind to the scheming Blackwood the Ermine, who commands her to hunt down Silver the Hedgehog. Silver and his new companion Dapple must sprint through the ever-shifting corridors of Castle Colossus to stop Blackwood, rescue Blaze, and free the townspeople held as servants.

With the very ground turning against them, the heroes face their toughest challenge yet. This eerie arc on the Road to #100 concludes with a dramatic chapter spotlighting fan favorites Silver and Blaze.