Doctor Who and the Claws of Axos — Terrance Dicks

'Axos calling Earth, Axos calling Earth...'

The creatures stood before them, beautiful golden humanoids, offering friendship and their priceless Axonite, in return for -- what?

Only Doctor Who remains suspicious. What is the real reason for the Axons' sudden arrival on Earth? And why is the evil Master a passenger on their spaceship? He very soon finds out...