Kalinke and Mitchell summarise the saga thus: Composed in Iceland, presumably in the fourteenth century.
The saga relates the strange adventures encountered by Jon, a young knight, in Flæmingialand.
He is welcomed by the king and witnesses mysterious events during a great banquet and again the following morning, when a fierce wolf is captured.
Jon requests the wolf as a parting gift, and it turns out that the beast is in reality Sigurðr, the king's son, upon whom his stepmother had placed a spell.
[1]Kalinke and Mitchell identified the following manuscripts of the saga:[1]