THE sitting of the Council lasted until nightfall, and just as the western mountains were throwing their huge shadows over the lovely valley, two more air-ships passed between two of the southward peaks and alighted in the great square in the centre of the city. They were the two vessels which had been sent to the island indicated in Olga’s letter to bring back the long-lost Alan and Alexis. It would be vain to attempt to describe the feelings with which the President and the father of Alexis went, as they thought, to receive their sons, but the air-ships had returned without them, and in their stead they brought a written message which conveyed tidings no less strange and startling than those brought from Antarctica by the _Ithuriel_ and her consort. It was a letter from Alan to his father, and as soon as he received it from the captain of one of the air-ships, who had found it nailed to a tree on the island, he took his friend into his library, and there the two fathers read it together. After briefly but circumstantially recounting the capture of the flag-ship by Olga by means of her subtle drugs, and showing how, by using the power they gave her, she had kept them in mental slavery for years, forcing them to employ their skill and knowledge in aiding her to build her aerial and submarine fleets out of the spoils of the destroyed ocean transports, from which the latter had taken an incalculable amount of treasure, Alan’s letter concluded thus:-- I will now tell you the reason why Alexis and myself have not waited for the air-ship which we knew you would send for us as soon as you received the message which Olga Romanoff told us she would despatch to you. We consider that by our weakness and folly--or, in truth, I should rather say mine, for it was I who invited these treacherous guests on board the _Ithuriel_--we have not only brought endless calamities upon the world, but we have also forfeited our right to the citizenship of Aeria. What the judgment of the Council would be upon us I don’t know, but we are resolved that, whatever it might have been, you and Alexis’s father shall be spared the sorrow of pronouncing sentence upon your own sons. Some day perhaps we may win at least the right to plead our cause before you. At present we have none, and until we have won it you shall not see us again unless you capture us by force. We were sent here in the _Narwhal_, the swiftest and most powerful vessel of the Russian submarine fleet. Only a few days ago an accident revealed to Alexis for the first time during our long mental slavery the means which this woman, who is as beautiful as an angel and as merciless as a fiend, had used to keep us in subjection. We took the utmost care to give her no suspicion of his discovery, and although we drank no more of her poison we acted exactly as though we were still under its influence.