The Lion and the Unicorn (Ark Royal, #15)

The war isn't going well.

In five years of heavy fighting, humanity and its alien allies have steadily been pushed back towards Earth, towards the very heart of humanity itself. The virus is steadily wearing the defences down, mounting campaign after campaign to infect and enslave every other alien race. The only hope rests with newer and better weapons, with technology that may turn the tide, but can the weapons and starships be deployed in time?

HMS Lion and HMS Unicorn are two new ships,...