A ghost, battles, the Viking Age.

This is the saga of Aslak Ottarssen, known as 'Slave-Born.'

Aslak, and his beloved sister, Astrid, are the children of a Norwegian farmer by an English slave. Their father frees Aslak, but not Astrid.

At fifteen, and a man under Viking law, Aslak 'goes Viking.' He promises Astrid that as soon as he has earned silver enough, he will buy her freedom.

On returning home, he finds that his father has died - and his step-brothers have sold his sister.

Furious, Aslak leaves his home forever, and calls on his ship-brothers to help him find and free...