"We ran home for you, Mr. Salmon." (17.79)
And a good thing, too! Lindsey is a sensitive daughter, and she knows her dad could literally have a heart attack if she's too late and can't be found.
"Now I am in the place I call this wide wide Heaven because it includes all my simplest desires but also the most humble and grand. The word my grandfather uses is comfort. (Epilogue.15)
This Heaven, presumably, will eventually hold the whole Salmon family. But for now, Susie is quite content to hang out with her grandfather.