Malcolm Archibald 
Falcon Warrior [EPUB ebook] 

Sailing west across the Atlantic, Melcorka and Bradan encounter a strange woman entombed within an iceberg.
On her is a headband decorated with the symbol of a falcon. Soon after, they meet a fleet of Norse ships and set sail with them towards the New World.
Fighting their way through skraeling hordes and facing the mysterious Ice Giant, they find the ancient pyramid city of Cahokia. But what is the secret of the strange falcon artifact?
This is a standalone novel and can be enjoyed even if you haven’t read other books in the series.