Quivven was waiting for him at his house, and reported that some one had torn a small piece out of one of the tapestries. Several days later she found the piece, but alas, there was a hole burnt in the middle of it.
The next morning Jud the Excuse-Maker called at the quarters of Cabot, the furless. It was a rare honor, so Cabot answered the door in person. Jud expressed his conviction that the earth-man really was a magician, after all, and that therefore he—Jud—was agreeable to an expedition to the mountains in search of rocks whose mystical properties would enable the performing of even greater magic. It was soon arranged that Cabot, with a bodyguard of some twenty Vairking soldiers and a low-ranking officer, should start on the morrow.
Myles was thrilled. Now he was getting somewhere at last! The rest of the day he devoted to preparing a list of the materials for which he must hunt.
To make a radio-telephone sending and receiving set, he would need dielectrics, copper wire, batteries, tubes, and iron. For dielectrics, wood and mica would suffice. Wood was common, and the Vairkings were skilled carpenters and carvers. For fine insulation, mica would be ideal; and this mineral ought to be procurable somewhere in the mountains, whose general nature he had observed to be granitic.
To make copper wire, he would need copper ore—preferably pyrites—quartz, limestone, and fuel. The necessary furnaces he would built of brick; any one can bake clay into bricks.
For cement, Myles finally hit upon using a baked and ground mixture of limestone and clay, both of which ingredients he would have at hand for other purposes.
The Vairkings used charcoal in their open fires, and this would do nicely for his fuel.
For the wire-drawing dies he would use steel. This disposed of the copper questions, and brought him to a consideration of iron, which he would need at various places in his apparatus. This metal could be smelted from the slag of the copper furnaces, using an appropriate flux, such as fluorspar.
Cabot next turned his attention to his power source. For some time he debated the question of whether or not to build a dynamo. But how about the storage batteries? He wasn’t quite sure how to find or make the necessary red and yellow lead salts for the packing plates.
Thus by the time that Cabot reached the contemplation of having either to find or make his lead compounds he decided to turn his attention to primary cells. The jars could be made of pottery, or from the glass which was going to be necessary for his tubes anyhow. Charcoal would furnish the carbon elements. Zinc could easily be distilled from zincspar, if that particular form of ore were found. Sal ammoniac solution could be made from the ammonia of animal refuse, common salt, and sulphuric acid.