CHAPTER I - The Set Up
It wasn't long ago that Sonic, his friends and Eggman faced peril when confronting the prototype of the ultimate life form, and made a vow to embrace life on Earth soon after it was about to be destroyed. The peace has endured, but it felt bittersweet, as Eggman could no longer put his ingenious evil mind to work, until one day he was reminded of something when a messenger with a proposal came into his base.
It was Rouge! It seems her passion for jewels has not yet vanished, and stealing them from their bearer was a well known practice to her, because the Time Stones could not have "walked" into Earth on their own, but that's a whole new story.
"Aging will eventually slow me down. If only I could keep my youth…" – she tried to glimpse her wish, but Eggman had better plans. "Follow me! I'd like to show you something I've been working on." And so did Rouge, as they walked into a dark room with only a few murals being lit by projectors. They seemed to tell a story that was familiar to Eggman, as he narrated them quite effortlessly, even though he had to decipher them on the go. Suddenly, he started using the Future tense: "He, who will use the Time Stones to displace matter in time, shall fulfill Angel Island's destiny by bringing in the controller of Chaos to the core, and forever be trapped in it!"
Rouge looked confused. "Why?" – she asked Eggman. "I cannot bring myself to harm those I swore to, and my promise shall be kept for as long as they remain in this world. Or should I say time?" Eggman's intentions became clear to Rouge. She realized she had brought the trigger to his plan, and it wasn't long before she started running, but to her demise.
In possession of the Time Stones, Eggman could finally realize his menacing plot.