about midnight
Her dark eyes were bent over her work as her fingers deftly pushed the needle in and out of the brown linen she worked on . `` Mr. Griggs , '' she began at last without looking up , `` did you know Mr. Isaacs was going out last night to kill that horrid thing ? '' I had expected the question for some time . `` Yes ; he told me about midnight , when he started . '' `` Then why did you let him go ? '' she asked , looking suddenly at me , and knitting her dark eyebrows rather fiercely . `` I do not think I could have prevented him .