By this time we were nearly back at the hostel, but instead of going in we met Grayson, who introduced the stranger as Harry Brand, the Electrical Engineer-in-Chief for the Port of Granby. Hearing of the important position he held I was no longer surprised that he should be a man of power of body and mind; an average man could not control interests so vast. He and his staff had to keep in working order the thousands of miles of transmitters that supply heat, light, and power to houses and manufactories, and also to provide the motive power used in the scores of great depôts mentioned. In addition to this they had to be ready to charge three or four thousands of tons of accumulators in the holds of the great ships.
'Our friend Brand,' said Grayson, taking my arm as we walked along, 'is going to take us down into a hole some seven miles deep, and show us where he gets his electricity from.'
'Have you been before?' asked I.
'No,' replied Grayson, 'I have frequently promised myself the pleasure but have found some reason hitherto for hurrying past. This time I have two strong young men to help me, and I am not tied for time.'
As he spoke we drew near one of the red balls mounted on the top of a post, indicating to travellers by air boat where they can drop to charge with electricity. Close to it was a little building placed over a stairway that appeared to lead straight down towards the centre of the planet. We all three went down the stair, Brand taking the lead.
The stairway was a spiral one of fifty steps, and at the bottom we found an open space, a few small rooms and a combination of closed car and electric motor, this being adapted for the carriage of four people, one of whom had to manipulate the machinery. Grayson and I were going straight to the car, which was obviously intended for our use, when Brand called us back.
'It will be necessary,' says he, 'for you, my friends, to remove your outer clothing and put on these garments, and when we have to leave the car these will have to be added,' pointing to helmets with clear glass fronts and little knapsacks at the back, 'Were you to attempt the journey as you are you would never return.'
In a few minutes we had made the exchange and taken our seats, and the car began to move rapidly down an incline.
'This car,' remarked Brand, 'is made of glass, and the outer clothing you are now wearing is also glass. We shall probably have to pass through what will appear very dangerous, and we shall not be able to speak to each other; in such cases follow me.'
'I was not aware,' said Grayson, 'that we were taking such risks in visiting your domain. It is scarcely fair to young Frankston, for an old man like me the risk is less. I am at the end of my usefulness; he is just beginning his.'
