ok poeple have あなた ever thought about how that boy got that jewel to put on the ドール head

Tsk, tsk, tsk. How little あなた know. There is no boy. There never was. The jewel sprouted from the doll's head after it devoured its first soul, and it has kept getting larger since.

Robotnik put it on the pole he was the one who built Tails Doll!

Mabey there is a spirt that posecced the Jules yyeeeaaahhh...YIPPY NOW I KNOW EVERYTHING. *all of my pieces came back* few. (if ya dont know wat im talking about read my last コメント on Tails new home)
i win ^o^

THE GEM WAS MADE IN HELL AND PUT ON THE TAILS DOLL FOR THE DEVILS SON BUT SOMETHING WENT WRONG IT ESCAPED AND STARTED EATING SOULS THATS HOW THE DEMON エメラルド GOT ON TAILS DOLL>:)

Good guestion but あなた know that can be answered at ask.com

Dude the devil put the jewel on tails doll head.

I don`t seem to know, but let`s not fight over this OK?