In that case, she must have started on the twenty-sixth, and must have come to London one day after the date of her own death on the doctor's certificate.
We know that his departure followed Laura's after the lapse of a few hours, and we may get at the date in that way.
Dawson's books certainly showed when he had resumed his attendance on Miss Halcombe at Blackwater Park, but it was not possible to calculate back from this date with any exactness, without such help from Mrs.
Dawson, I resolved to try next if I could establish the date of Sir Percival's arrival at Knowlesbury.
She remembered her master calling her out of bed, and remembered his frightening her by swearing--but the date at which the occurrence happened was, as she honestly acknowledged, "quite beyond her."
There is no need to describe what passed between us--it ended, as all my other attempts to discover the date had ended.
"The simplest and surest of all proofs, the proof by comparison of dates, is, as I understand, altogether out of your reach.