"Leader of the Faction of Humanity". It was a ridiculous title, but the Arena said that was what Captain Ariane Austin was since she'd led the crew of the Holy Grail in their discovery of the impossible, physics-violating place and their eventual return, and when the nigh-omnipotent Arena said something, it meant it.
Ariane must discover what it means to be the Leader of Humanity, both for herself and for humanity, before her enemies – at home or in the Arena -- depose her, kill her, or worse. It will take all her luck, Marc C. DuQuesne's indomitable will, Simon Sandrisson's genius, and the peerless skill of a living legend – and in the end, all will hinge on the choice of an uncertain ally who has nothing to gain… and everything to lose… by aiding them.
Spheres of Influence is the sequel to Grand Central Arena; in this novel of the Arena, the formerly comfortable human species must face the fact that they are now one very small, very new Faction in the immensity of the Arena, and all the dangers that this poses. New people, new allies, new enemies, and new dangers – and some very old, very familiar dangers wait for Ariane Austin when she returns home, as well.