David Orme 
Planet of the Vampires 

The Starchasers are lost deep in space and Rob, their onboard computer is riddled with viruses. Without any of their controls working and only 24hrs of oxygen left, the team make an emergency landing on an unknown planet. Soon the Lightspinner is surrounded by menacing black cats howling in the night. When day comes the cats have disappeared and the team set about making repairs but minutes later Misha is gone. Can Finn and Suma rescue her from the grips of the planet’s thirsty inhabitants? And how will they find the money to fix Rob and continue their space adventures?