The desire of the moth for the flame, the attraction of steel for loadstone, the bond between chlorine and hydrogen, the affinity of kalium for the halogens--what are these compared to the passion of a prisoner for an open gate? Kropotkin trembled as if in a fever. From head to foot his body shook, while the heart leaped and his pulses throbbed. He soon managed to let his Circle know how near he was to liberty, and immediately the comrades determined to aid him in escaping. Plans and plots were devised and disposed of, till Kropotkin feared all would be too late. He violated the rules of hygiene, hoping to keep in bad health, for he knew his walks would be stopped as soon as the doctor pronounced him well. Alas! in spite of all his efforts, his weight increased, his eyes brightened, his complexion cleared, his digestion improved. All symptoms of scurvy left him,--the livid spots under the skin and the oozy spongy gums disappeared. At last all was ready. The revolutionists were sentimental, and decided the escape should occur June 29th, Old Style, for this is the day of Peter and Paul. It was arranged that Kropotkin's signal that all was well should be the taking off of his hat, and if all were right outside, the comrades would send up a red toy balloon. The day of the "saints" came. At the usual time--four o'clock--Kropotkin was brought out for his walk. He took off his hat, and waited for the little balloon. But in the air no red ball arose, and at the end of an awful hour, he returned to his cell--sick, crushed and broken. A peculiar thing had happened. Usually hundreds of balloons could be bought near the Gostinoi Dvor. Yet that day not a red one was seen--only blue and white ones were there. Later one was discovered in the possession of a child, but it was damaged and could not ascend. The comrades rushed into an optician's shop, bought an apparatus for making hydrogen, and filled the rubber with the gas. Had they pumped it full of fluorine, the result would not have been worse. No inflation occurred, and the unexpanded balloon did not fly--but time did. The comrades grew worried. Then a lady attached the useless toy to her umbrella, and holding it above her head walked along the prison wall. But Kropotkin saw nothing because the wall was high and the lady was short. The next day, at two, another lady came to the prison, bringing Kropotkin a watch. Not dreaming that a pocket time-piece could contain anything dangerous, the authorities passed it along without examination. Kropotkin did not look at the hour, but pulled off the lid, and found a tiny cipher note containing a new plan. (Had one of the officials performed this operation the lady's life would have been forfeited.)