The long awaited return to Robert Low's Oathsworn series Island of Mann, 979AD. A man lies dying with a message he cannot take to his grave, a sworn secret that must be passed on only to Olaf Tryggvasson, kin of Harald Fairhair of the Yngling line and true prince of Norway, also known as Crowbone. When the message finally arrives, so begins a quest to discover its meaning, and for Crowbone to gain what is rightfully his: the crown of Norway. With a band of Chosen Men, Crowbone begins an unforgiving journey that will see him face the challenge of new enemies and confront his suspicions of treachery from old friends. Looming over all is his ultimate rival; Gunnhild, the Witch Mother of Kings, Crowbone's arch-enemy who will stop at nothing to prevent him from knowing what and where this secret is. In the fifth installment of his Oathsworn series, Robert Low is back to his full-blooded Viking best, this time visiting the harsh terrain of the North Sea coast, in a tale about one man's quest for survival and the unexpected alliances that emerge, as the very bonds that tie the Oathsworn together are put to the test.