... be is no concern of mine," answered the merchant. "Some viking's brat, it may be; for he has the viking spirit in him, and the salt of the sea is in his veins. No landman can tame him. As to his name, if ever he had one, 'tis certain he has none now, and is only known as Reasthrall, for he is the thrall of ... — Olaf the Glorious - A Story of the Viking Age • Robert Leighton