Sacrifice.

The lamps in the temple were not made from lightstones. They were electric lamps which were so bright that made the surroundings look like true day.

It was the first time he was seeing electric lamps in this world. But he was no stranger to them. So he didn't gawk like everyone else. He went straight to the business he came for.

He found a priest and asked him for help making the patent. The priest was in oily overalls. He looked no different from an ordinary worker.

The main difference between the priest and an ordinary person were his glowing eyes. This marked him as a godclad.

Legion was sure of this when he saw the priest lift a large engine with one normal-looking arm. It was a display of unnatural strength, which confirmed that the priest wasn't ordinary.

The priest led him to a small, quiet room at the back of the factory. This was the only part of the factory that had any resemblance to a church.