He studied Roark and the house with the same meticulous scrutiny; he felt as if he could not quite tell them apart.
She sat looking up at him, faintly astonished by his scrutiny, as if her words had deserved no special attention.
But when he lifted his eyes to Catherine, he knew that no caution was necessary: she did not react to his scrutiny; her expression remained the same, whether he studied her face or that of the woman at the next table; she seemed to have no consciousness of her own person.
There are no more uses of "scrutiny" in the book.
Show samples from other sources
She scrutinized her reflection in the mirror.
The senator asked the agency to scrutinize the proposed legislation and report back to her with their findings.