Traveling through the Tang Dynasty, he was sent to the barren frontier at the beginning, penniless, and even caught up with the Turkic army approaching the border, and the people in the city were waiting to die! ——Gu Lin smiled: If you sign in every day, you will be rewarded [Cement Formula] on the first day, [Blast Furnace Steelmaking] on the second day, and [Steam Engine Blueprint] will be unlocked directly on the third day! When the Turkic iron cavalry approached the city, the small dilapidated city in front of them had a reinforced concrete fortress pulled up overnight, and catapults smashed out flowers all over the sky... Millions of people shouted in unison: Mr. Gu, please stop building it. If you continue to build it, Chang'an City will be surpassed by you!
