Clay McHenry is a character from the Valiant Comics universe. He first appeared in his own series "Geomancer", where he began as a blind, dead-beat, ex-police officer who was expected to take on the role of a Geomancer, a role that his great-uncle (Buck McHenry), and until recently, his nephew (Geoff McHenry) had filled.
Though not actually trained to be a Geomancer, he was chosen by the Book of the Geomancers itself (through the reluctant Gilad, the Eternal Warrior), and for a time was chosen to do the will of the Earth.