The Thing in the Gap-Stone Stile

I've been reading Alice Oswald's amazing poetry book, DART. It's a 48-page book about a journey from source to outlet of the River Dart in England. Sounds boring. Is absolutely amazing.

Oswald first poetry book, with the above title, is now worth approximately $365 per used copy, according to ALibris.

Would the person who borrowed my copy kindly return it? :)