Meanwhile, Presteign reveals that "PyrE" is activated by telepathy, and Robin is enlisted to trigger it to flush out Foyle. Bits of PyrE left exposed by Foyle's tests to determine its purpose cause destruction worldwide, but primarily at Foyle's abandoned encampment in St. Patrick's Cathedral, where Sheffield has brought him. The church partially collapses, killing Sheffield and trapping Foyle, unconscious but alive, over a pit of flame. Suffering from synesthesia brought on by the explosion affecting his neurological implants, Foyle jauntes through space and time as The Burning Man. Finally he lands in the future, where Robin telepathically tells him how to escape from the collapsing cathedral.