This is one of my favourite novels by Rosemary Sutcliff, (along with Blood Feud and Sword at Sunset). Interestingly it is not as well known as the three Eagle novels, even though it does belong to the sequence as the hero, the young Roman officer Alexios, belongs to the Aquila family.
Like many of Sutcliff's novels this is an account of error and the opportunity of redemption and as usual it is very well done. Alexios, in disgrace, is given command of a motley crew of the dregs of the Roman army, the Frontier Scouts, whose base lies well beyond Hadrian's Wall. He must win the respect of his men as well as attempt to keep the peace with the neighbouring Caledonian tribes. The heart of the novel is the thrilling account of the retreat back to the Wall when wholesale rebellion breaks out.
Sutcliff dedicates the book to Wallace Breem among others and there is an undeniable influence from Breem's fiction evident: Eagle in the Snow for setting and time period, but even more from The Leopard and the Cliff, Breem's Afghan novel, for the theme of desperate retreat and the maintenance of loyalty under the extremes of revolt and personal danger. There also is a real feeling for the difficulties of knowing the right thing to do and doing it.
Unjustly neglected, I recommend this exciting and thoughtful novel.