The humor disappears and the description is harshly realistic.

All humor disappeared from her voice as she leaned toward Septos until her face was only a few centimeters away from his.

The latent humour and good nature in his face disappeared, to be replaced by grim anger.

All traces of patronizing humour on the subject had disappeared from his shrewd countenance.

The humour disappeared from his face and the eyes g!

The good humor disappeared from the faces in the group.

Of course, racist and ethnic humor has not disappeared.

Gavras' brief good humor disappeared with him.

Both were such intense competitors that they took losing personally, and the good humor in their banter quickly disappeared.

Instantly the humor disappeared from Eric's eyes, replaced with a chilling cold.