Love Among the Ruins by Warwick Deeping

The crowd had streamed from the cavern, swirling like black water under the tossing torches, the hollow galleries reverberating to the rush of many feet. Prosper had gone, borne away by the seditious captains of the Commune and the armed burghers who had guarded the entries. A great silence had fallen upon the crypt. Fulviac and the girl were left by the altar of black marble, their one lamp burning solitary in the gulf of gloom.

Fulviac had the air of a man whose favourite hawk had flown with fettle, and brought her quarry tumbling out of the clouds. He was warm with the zest of it, and his tawny eyes sparkled.