replied Grimaud, a cloud darkening his countenance at the picture so suddenly summoned to the bar of recollection.

At this instant a second cry, less piercing than the first, but followed by prolonged groaning, was heard.

The three listeners looked at one another in alarm.

“We must see what it is,” said Grimaud.

“It sounds like the cry of one who is being murdered,” murmured the host.

“Mon Dieu!” said the woman, crossing herself.

If Grimaud was slow in speaking, we know that he was quick to act; he sprang to the door and shook it violently, but it was bolted on the other side.

“Open the door!”