These tales have been retold many times on screen, so you likely know the characters well. Vivian’s 21 chapters (my paperback copy, published in 1965) reads each like wholly encapsulated little short stories, chronologically sequenced, and tied together by the characters.
The plot is extremely simple. After a couple of chapters of repetition, the cycle would be boring if not for the beautifully rendered language that we seem to have lost in modern stories. You fully expect the hero(es) to prevail in each adventure and the antagonists to act as buffoons, but the reader is drawn to pity the latter rather than hate them.
The villains are melodramatic, with few redeeming qualities, nor are they complex. The heroes are more varied, if not stereotypes. At times the protagonists feel uncharacteristically cruel, playing with their prey as cats would. Within the narrative, death — whether by murder, battle, or execution — is oddly described in almost a casual manner. But perhaps that would have been the case in the 12th century, death being a part of daily, if not weekly life.
The illustrations are acceptable, but oddly placed. They really did not enhance the stories for me.
I would have given the book a lesser rating had it not been for the aforementioned language style, and the welcomed surprise that the characters don’t live “happily ever after” in the last few chapters of the book. The end was bittersweet, and seemed to be a much more realistic perspective contrasted with the predictable, good-always-wins exploits of the early chapters.