Rather than entertain William with computer games and videos, I decided to open Word and write a story together. It ended up being less of a collaboration and more of him dictating to me while I prompted him with "and then what happened". So here's the story. I don't think it's publishable yet (the narrative thread needs work), but it's quite impressive for a first try.
William and Craig and Hunter
Once upon a time, there was a boy named William who wanted a hockey stick. Craig plays hockey with a hockey stick. William wanted to join in so he said to his uncle Craig “play hockey with hockey pucks!”
“Great idea!” said uncle Craig and they got some hockey sticks and hockey pucks and they played for a whole hour. Just then, Hunter came by.
Hunter got a hockey stick. Hunter got a hockey puck. Hunter went to play hockey with Uncle Craig and William. William got the puck in the net. “Score!!! I win!!!!” he yelled.
Then Hunter and William and Craig got guns. Hunter got a new gun, a ball gun that shoots paper. They shot at shooting guys. Craig and William and Hunter were mad. The shooting guys made them mad.
Then Hunter and William and uncle Craig went to watch some tv. It was Toopy and Binoo. They were happy.