Charles Soule 
Bloody Dozen: A Tale Of The Shrouded College #2 

The offer has been made; the offer has been accepted. In return for youth, freedom and magical power granted to them by the Shrouded College, three washed-up former astronauts will undertake a deadly mission to free nine vampire lords locked away in a prison orbiting the sun. Yesterday, the trio didn’t believe vampires existed. Today…the countdown has begun.