Then I reckoned the future as well as the past. So many days it would take me to ride to Tangier, so many hours to cross from Tangier to Cadiz, so many days and nights by rail from Cadiz to London. The grand total of time past since my poor Noel first became unwell, and of time to come before I could reach his side, would be so much. What would his condition be then? I knew that also. It would be so and so. Thus, step by step I counted it all up. The interval would be long, very long, between the beginning of the attack and my getting home, but not too long for my hopes. All going well with me, I should still arrive in time. If the disease had taken an evil turn, my boy might perhaps be in its last stages. But then _I_ would be there, and I could save him. The operation which I had spent five years of my life to master would bring him back from the gates of death itself. Father, I had no doubt of that, and I had no doubt of my calculations. Lying here now it seems as if the fiends themselves must have shrieked to see me in that far-off land gambling like a fool in the certainty of the life I loved, and reckoning nothing of the hundred poor chances that might snuff it out like a candle. Call it frenzy, call it madness, nevertheless it kept my heart alive, and saved me from despair. But, oh! the agony of my impatience! If anything should stop me now! Let me be one day later--only one--and what might not occur! Then, how many were the dangers of delay! First, there was the possibility of illness overtaking me. My health was not better, but worse, than when I left home. I was riding from sunrise to sunset, and not sleeping at nights. No matter! I put all fear from that cause away from me. Though my limbs refused to bear me up, and under the affliction of my nerves my muscles lost the power to hold the reins, yet if I could be slung on to the back of my horse I should still go on. But then there was the worse danger of coming into collision with the fanaticism of the people through whose country I had to pass. I did not fear the fate of the American, for I could not be guilty of his folly. But I remembered the admission of the English Consul at Tangier that a stranger might offend the superstitions of the Moslems unwittingly; I recalled his parting words of counsel, spoken half in jest, "Keep out of a Moorish prison"; and the noisome dungeon into which the young Berber had been cast arose before my mind in visions of horror.