From Unofficial Handbook of the Virtue Universe

[edit] Cloud 9

Cloud 9 is Cloud Runner's base of operations. Formerly it housed his mentor, Nimbus, but after his disappearance Cloud took it over. It glides high above Paragon City, a floating platform. On the platform sits a tall building, inside is Cloud Runner's living quarter's, computer room, lab and training grounds. Whenever Cloud is not out soaring the skies or fighting evil-doer's he is found here. The platform itself is kept aflight by the many propellers at its base. It is impossible to know the exact location of Cloud 9 because its always on the move, that and it is masked by a thick layer of cloud. Cloud Runner uses a locator device to find its location.