But that face, to which a faint layer of powder gave almost the appearance of a face on the stage, in vain might M. de Charlus hermetically seal its expression; his eyes were like two crevices, two loopholes which alone he had failed to stop, and through which, according to where one stood or sat in relation to him, one felt suddenly flash across one the glow of some internal engine which seemed to offer no reassurance even to him who without being altogether master of it must carry it inside him, at an unstable equilibrium and always on the point of explosion; and the circumspect and unceasingly restless expression of those eyes, with all the signs of exhaustion which, extending from them to a pair of dark rings quite low down upon his cheeks, were stamped on his face, however carefully he might compose and regulate it, made one think of some incognito, some disguise assumed by a powerful man in danger, or merely by a dangerous—but tragic—person.