Please help me - my sister recommended this book to me but I can't remember the name. It has something to do with a family. There were 3 sisters and the youngest goes missing. And the story is something about the 2 sister's dealing with their little siblings disappearance like 20 years later or something.

Does this sound familiar to anyone??? TIA!

ETA: I figured it out it's called "How To Be Lost" and has been added to my list of books to read.