I completed the audiobook version of Summerhill by Kevin Frane for Furplanet earlier this year. The attached file is the ~5 minute retail sample of the book.

You can get the whole thing from Audible.com over here: http://www.audible.com/pd/Sci-Fi-Fantasy/Summerhill-Audiobook/B00XRTE8CW/ref=a_search_c4_1_1_srTtl?qid=1437162836&sr=1-1