Even on the level of story alone, this novel makes enthralling reading and builds up to an enthralling climax, but that is not all.
It tells how Ewan MacLeod is driven off course at university and has to return in shame to his home village on the Scottish coast, where he becomes a tragic hero, caught in the slide from Scotland's noble past (symbolized by the lost glen) into humiliating subserviance, in which the poor must choose between open defiance of the law or selling their souls to the English and Americans.
Gunn is at his best when describing the destructive force of the stormy sea and man's constant battle to survive its dangers. The early scene in which Ewan nearly drowns with his father is followed by passages which may strike the reader as tedious by comparison, but it is worth persevering. In the second half, the plot darkens and gathers pace, sweeping Ewan towards his inevitable clash with the corrupt and bloated Col. Hicks and the darkness beyond.
Gunn's use of darkness and storm to indicate the alienation, despair and frustrated passions of his hero is remarkable, as it was in "The Serpent", but as he finally staggers to the cliff edge with his terrible burden, we are encouraged to feel that his soul may yet be saved by the spirit of self-sacrifice in which he has struggled to preserve the integrity of his people.