He met Xorth after walking into a cave and stepping on something, he was so amazed by Xorth that he made a deal,

The deal was that Xorth could control his body half the time, and Sid could have the powers during that time when he was a ghost/soul/spirit,

But Xorth was taking control too much to the point where Xid (Xorth possessing Sid) was locked in Sids room,

Xid broke out the window and went back to the woods, Sid and Xorth fought and Xorth won,

After that, Xorth was in control 24/7,

After about a month, Sid took control again to find his body cut, he blacked out and was taken to the hospital by someone

He got better after a week or so and went home, after a bit he started having horrible nightmares,

They were about Xorth, all of them were violent.

Sid just stoped sleeping,