twenty-five minutes past eight
`` We 've got it ! We 're on the trail at last ! '' I exclaimed . `` I just found out at the club that Woods left his dinner hurriedly and was not seen again until twenty-five minutes past eight . '' `` We 've got to go slow , '' cautioned the coroner . `` A man who is ingenious enough to devise this means of murdering a man wo n't be tripped up for lack of a perfect alibi . '' `` I 've found what that is too .