She and Nick were running away from some bullies.
She was riding her bike around and became lost.
The mailman asked her to deliver mail to Nick's house.
She needed help with her broken bike.
A cat's meow
A strange light
Her world bumped against Nick's world at times.
She played her music through a special machine that connected worlds.
She had sent Nick a DVD of her playing his favorite music.
Every time she was on TV, he made sure to watch.
In the nettles
In the muddy pond
Over the sand bank
Off a high tree branch
Special Agent Jofolofski, of Extra-Existent Affairs.
His hired baby-sitter.
From Area 55 where research is being done on aliens.
A truant officer looking into Nick's many absences.
His son might die.
Nick could join his mother in her world.
Nick might stop growing.
His son could stop loving him.
Place a special disk on the floor of the basement.
Jump between worlds and grab Nick's mom.
Report what she saw to the FBI.
Find Nick and bring him back.
Absent friend, Jess.