Nation by Terry Pratchett 

Alone on a desert island – everything and everyone he knows and loves has been washed away in a storm – Mau is the last surviving member of his nation. He’s completely alone – or so he thinks until he finds Daphne, the sole survivor of the wreck of the Sweet Judy. Together, Mau and Daphne discover some remarkable things and start to forge a new nation.

The Outer Edge is Chatham Area Public Library’s Science Fiction and Fantasy book club.