Why should he do that, but that Mrs. Snagsby sees it all? Why else should that look pass between them, why else should Mr. Snagsby be confused and cough a signal cough behind his hand? It is as clear as crystal that Mr. Snagsby is that boy's father.

Mrs. Snagsby sees it all - it is as clear as crystal that Mr. Snagsby is that boy's father.
