Can't remember the VERY first either, but it had to be one of those disney golden books. Had a bunch of those.
One book i loved though was Bringing the rain to Kapiti plain.http://www.youtube.com/watch?v=tjDW7aqqGgg
(skip to 5 minutes in. BTW i HATE that new opening
there another one we read in school that i can't remember except the ending. about a dog and sled race and its heart explodes at the finishline. if anyone remembers let me know. feel free to put the title in spoilers if you want.