They were leisurely enough for the first paralysing effect of this discovery to pass away before a resolute determination to come out victorious from the ghastly struggle with that armed lunatic.

They were leisurely enough for Mr Verloc to elaborate a plan of defence involving a dash behind the table, and the felling of the woman to the ground with a heavy wooden chair.

But they were not leisurely enough to allow Mr Verloc the time to move either hand or foot.
The knife was already planted in his breast.

It met no resistance on its way.

Hazard has such accuracies.