Seven Sisters    by David Bowman
Price: $2.99 USD. 48090 words. Published by Bluewood Publishing on December 18, 2010. .
In an intact 9th Century Roman Empire one man has the chance to fight one battle to bring an end to civil war. To besiege the most highly fortified city in the empire, its seven forts and water defences. Thanks to his devious emperor, he hasn’t got enough troops or enough time but he must win for the empire, and use the new weapons at his disposal. He can do this, but can he do it in time?