Power of the Chaos Emeralds is a 2-part story by Nigel Kitching, Richard Elson and Ellie de Ville that continues on from Enter Knuckles. Doctor Robotnik is behind held in Kintobor's Laboratory with Porker Lewis reluctantly questioning him - until the arrival of Knuckles the Echidna. A swift capture of Porker forces Sonic to hand over the Chaos Emeralds and the two villains make their escape. Sonic and Tails pursue on the biplane, managing to ground Robotnik's Egg-o-Matic on the Floating Island. Fed up, Knuckles gets ready for a final showdown.