At the end of Chapter 3 in Freak the Mighty, where was Max pulling Kevin?

At the end of Chapter 3 in Freak the Mighty, Max picks Freak up, places him in the wagon, and pulls him to his house to show him his room (14):

I figure it's easier to show him than explain all about Gram and Gram and the room in the cellar, so I pick up the handle to the American Flyer wagon and I tow him over.

This moment occurs after Max helps Freak...

At the end of Chapter 3 in Freak the Mighty, Max picks Freak up, places him in the wagon, and pulls him to his house to show him his room (14):

I figure it's easier to show him than explain all about Gram and Gram and the room in the cellar, so I pick up the handle to the American Flyer wagon and I tow him over.

This moment occurs after Max helps Freak get his ornithopter unstuck from the tree. While this may seem like a small, insignificant moment in the novel, it’s important to note that this is the incident that their friendship really kindles. As Max is pulling Freak in the wagon, he notices that Freak is really happy (14):

It's real easy, he doesn't weigh much and I'm pretty sure I remember looking back and seeing him sitting up in the wagon happy as can be, like he's really enjoying the ride and not embarrassed to have me pulling him around.

This small act demonstrates that they have a mutual respect and trust for each other, which is the foundation to any friendship. Freak trusts Max enough that he feels comfortable in the wagon, and Max trusts Freak enough that he’s willing to show him his room in the down under, which is one of the only places he has ever felt safe.