More Heat Than the Sun Series by John Wiltshire

The supreme art of war is to subdue the enemy without fighting. Nikolas has always liked art. You'd have thought that Ben and Nikolas would have learnt that their romantic holidays inevitably end up as disasters. A short break on the polar ice sees them trapped in a nightmare of murder and deceit. Neither of them, however, foresees the long-term impact that endless winter has on their relationship. They return with a metaphorical darkness that threatens everything they have created together... moreThe supreme art of war is to subdue the enemy without fighting. Nikolas has always liked art. You'd have thought that Ben and Nikolas would have learnt that their romantic holidays inevitably end up as disasters. A short break on the polar ice sees them trapped in a nightmare of murder and deceit. Neither of them, however, foresees the long-term impact that endless winter has on their relationship. They return with a metaphorical darkness that threatens everything they have created together. Desperate and fearing for Nikolas's life, Ben makes a bargain with a surprising ally. For the first time, Nikolas meets an enemy more powerful than he is. But fortunately, not as sneaky... less