Read it through once

We entered the quiet and humble temple; the priest waited in his white surplice at the lowly altar, the clerk beside him. All was still: two shadows only moved in a remote corner. My conjecture had been correct: the strangers had slipped in before us, and they now stood by the vault of the Rochesters, their backs towards us, viewing through the rails the old time-stained marble tomb, where a kneeling angel guarded the remains of Damer de Rochester, slain at Marston Moor in the time of the civil wars, and of Elizabeth, his wife.