Five years had passed since Ty played around with powers he did not comprehend.
He had teleported himself and the egg back to the basement of his parents house.
When he had felt around that leathery bag,he hadn't felt the curled body of a human boy.Nor had he felt the curled form of a baby dragon.He had felt slurpy,gooey liqid.
Joey was a single cell,and Ty couldn't return him to his human form.
Ty called off the fun and games,and recalled the rest of the gang.He needed someone to tell him what to do.
They were annoyed at first,then they bailed out.Try telling the cops
that "no,i didnt murder Joey,he's just incubating in his egg"
It was just Ty and his egg now,and he hid it in the basement and wished it would go away.
He put his power to good use.He turned himself into a horse and his brother raced him at the race track.With the earnings they bought people off.
Ty made money.
He forgot about the egg.
Joey had just run away.
Down in the basement however,things had been happening.