Rosemary Sutcliff  was a miniaturist before she became an author and The Chief’s Daughter is a miniature in prose, a very short story in which the lines are  neat, bold and clear, the characters lightly brushed in but arresting. Set in ancient Wales it tells how a chieftain’s daughter frees an Irish slave boy destined for sacrifice and how he in his turn unwittingly in his turn saves her  from dying in his place. The story was originally in a volume of tribute by many children’s authors to the memory of Eleanor Farjeon;  now, as a fully illustrated book in a series designed
for seven year olds, The Chief’s Daughter will
deservedly reach a far larger number of young readers.

Source: The fantastic living force of landscape by Elaine Moss; The Times, December 2, 1967, p 23.