Read it through once

It is so difficult to become clearly possessed of the contents of almost any letter, in a violent hurry, that I had to read this mysterious epistle again twice, before its injunction to me to be secret got mechanically into my mind. Yielding to it in the same mechanical kind of way, I left a note in pencil for Herbert, telling him that as I should be so soon going away, I knew not for how long, I had decided to hurry down and back, to ascertain for myself how Miss Havisham was faring. I had then barely time to get my great-coat, lock up the chambers, and make for the coach-office by the short by-ways. If I had taken a hackney-chariot and gone by the streets, I should have missed my aim; going as I did, I caught the coach just as it came out of the yard. I was the only inside passenger, jolting away knee-deep in straw, when I came to myself.