March Books 13) The Krillitane Storm, by Christopher Cooper
I am gradually getting towards the end of the many Tenth Doctor novels, this being another one from the companionless era (ie 2009). Set in 12th-century Worcester, it presents the Krillitane very differently from School Reunion, actually being exploited by alien geneticists who are much nastier than they are. Some very good concepts, not executed quite as well as they deserved.