Even adults can enjoy this book. The fact that this book is aimed at younger readers (young adult) just means you don't have to read graphic rape scenes or whatever that you sometimes find in more standard "fantasy" books. This is historical fiction set in Britain at a time when the Roman Empire was weakening in Britain. The main character is transfered to the Frontier Wolves after he makes a mistake in his first command crisis. I am not sure what age these books are aimed at exactly, but 12+ is probably the low end for most of them (esp the Shield Ring). Always have some fighting, often mention things like prostitution, slavery, etc. Good characters, good pacing, good plot, lots of good historical details - very enjoyable read.