July Books 14) State of Change, by Christopher Bulis
I can recommend this Sixth Doctor novel to my Whovian classicist friends: it is set in a world where Antony and Cleopatra discovered alien technology and won the Battle of Actium, and a generation later, their twins and Cleopatra's son by Julius Cæsar together are ruling the known world as an uneasy triumvirate. Of course, all is not as it seems, but Bulis has produced quite a good story with some quite subtle underlying themes of change and transformation, and in particular gives Peri a rather better story than she usually gets. The characterisation of the Sixth Doctor is a bit off-kilter, but actually in rather a good way. Good fun.