I'm dreaming of a short book

I worked in the children's room today, where I had the pleasure of finding cat books for a two-year-old who joyfully meowed her way through each one. (I'm not being sarcastic; toddler energy utterly delights me.) Working YP is always a bit of a crap shoot: in some branches, it often feels like little more than babysitting the printers. But today the branch was chock full of people actually looking for books.

I was a bit stymied by two requests for fantasies--but not "too big" fantasies. I thought in this post-Harry Potter world that kids were mostly over being intimidated by longer books, but clearly not. I'm working YP again tomorrow--quick, what are your best recommendations for non-intimidating fantasy?