This book has an aunt-mother

"Bony Legs"

https://www.spaghettibookclub.org/review.php?reviewId=11257

"Carly reads....’Bony Legs’ by Joanna Cole"

https://youtu.be/FEPFJ67Z0I4

"Bony Legs..."

https://www.google.com/amp/s/amp.reddit.com/r/WTF/comments/1an4vv/bonylegs_most_messed_up_book_from_my_childhood/

"The Bony-Legs" | Flickr

https://www.flickr.com/photos/40350601@N07/albums/72157632614836933/