The empire of ashes / Anthony Ryan.

For hundreds of years, the Ironship Trading Syndicate was fueled by drake blood - and protected by the Blood-blessed, those few who could drink it and wield fearsome powers. But now the very thing that sustained the corporate world threatens to destroy it. A drake of unimaginable power has risen, and it commands an army of both beasts and men. Rogue Blood-blessed Claydon Torcreek, Syndicate agent Lizanne Lethridge, and Ironship captain Corrick Hilemore, spread to disparate corners of the world, must rely upon the new powers and knowledge they have gained at great price to halt its forces - or face the end of all they know.