Each time the Lord of Mortimer's face was dark and gloomy.

He had reckoned somewhat confidently on finding the fugitive in one of these known hiding places.

He had hoped Sir Oliver would profess an ignorance of at least one of the two.

His face was fierce and vindictive as the second was "drawn blank." But the excitement of the boys was slowly augmenting as the party moved higher and higher in the house, leaving scouts posted in various places, and, as it were, spreading a cleverly-constructed net all through Chad, which it would be impossible for any person being hunted from spot to spot finally to escape.
The prior's idea now was that the monk might be gliding before them from place to place, confident that his knowledge of the intricacies of the house would give him the chance of evading them at the last.

It was a desperate game, to be sure, but one that had been successfully tried by others on more than one occasion.