"I suppose you are going on with your experiments ?" he said.
The gloom of Benjulia's grave eyes deepened: they stared with a stern fixedness into vacancy.

His great head bent slowly over his broad breast.

The whole man seemed to be shut up in himself.

"I go on a way of my own," he growled.

"Let nobody cross it." After that reply, to persist in making inquiries would only have ended in needlessly provoking an irritable man.