I'm biased. I think so much of Farley Mowat that it's hard for me to be critical. He's wicked smart. A lot of his writing comes from first hand experiences which he tells in such a way as to make me feel like he's there. He thinks for himself without being worried about looking stupid. And...he has an awesome sense of humor.
So it's no surprise that I really liked this book. He tells his theory about how Alban (Picts) people moved from northern English isles hunting and following the walrus populations as they were discovered, depleted, and rediscovered, etc. Also how conflicts with other populations of people from around the island such as Celts, Scoti, and later Vikings pushed them off their ancestral lands into Iceland, Greenland, and eventually North America where they intermingled with the Tunit who also traveled in those circles. His theory is that they were the first true European settlers to arrive in North America.
What's so cool about all these theories is eventually DNA evidence will be able to prove or disprove this hypothesis. I'm inclined to think it is correct.
My favorite part about this book was how he wrote about his theory, with supporting evidence, scholarly...blah,blah,blah, then he would write a narrative on how he felt it could have played out. Sometimes it felt a little repetitious and speculative, but I didn't mind because the narrative would help me file away the facts I just read in a cohesive way. The narrative also brought out interesting details on how they journeyed.
An unexpected result of reading this book makes me see how trade between peoples creates imbalances. They once used walrus in a sustainable way, for food, skins for boats, blubber, and ivory. Once they discovered a market for walrus ivory they rapidly hunted the walrus to extinction in many areas.
An isolated population of people is inclined to reach a neutral homeostasis with their environment. A population with a trade network creates social stratification, exhaustion of natual resources, population imbalances, which results in famine, crime, disease, exploitation of humans... Sigh...