The legend went, unconfirmed and unaccredited, but still propagated, that this was the portal of a vault, imprisoning deep beneath that ground, on whose surface grass grew and flowers bloomed, the bones of a girl whom a monkish conclave of the drear middle ages had here buried alive for some sin against her vow. Her shadow it was that tremblers had feared, through long generations after her poor frame was dust; her black robe and white veil that, for timid eyes, moonlight and shade had mocked, as they fluctuated in the night-wind through the garden-thicket.