[The Curse of the Viking Grave is an] unnecessary sequel to Lost in the Barrens … and an anticlimax compared to that book. The Black Hole …, and the author's other excellent adventure stories set in the wilderness of northern Canada. In Barrens, the Scotch boy Jamie and his Cree Indian friend Awasin had been lost for a winter in the Barrenlands and finally rescued by Peetyuk and his Eskimo tribe. Here, Jamie, Awasin and Peetyuk make plans to go trapping and then in the summer to return to the region to investigate what they believe to be evidence of Vikings…. Awasin's sister is foisted off on the expedition, and despite the accounts of her athletic prowess as well as physical charm, readers are likely to agree with Jamie that she doesn't belong on this trip. The boys should be approaching the adult years, but sound younger when they talk...