燕山学院的秘密图纸
在一个宁静的夜晚，山东财经大学燕山学院的一位教授在办公室里翻阅着一本旧书。突然，他发现了一张黄色的纸片，上面绘制着一幅奇怪的地形图。教授感到好奇，便决定调查这张图纸的来源。
寻找线索
教授开始询问院里的同事们，但没有人知道这张图纸是怎么回事。他决定自己去研究这个问题。在学校的档案室中，他找到了一些关于燕山学院早期历史的文件。这些文件提到了一个名为“燕园”的秘密实验基地，这个基地曾被用于进行一些不明确目的的科学研究。
揭开谜团
教授继续深入研究，终于在一个老教师的手记中发现了关键信息。这份手记提到，“燕园”是一个地下设施，它隐藏在地下数十米的地方，并且连接了整个城市的一个网络系统。 professor 的心跳加速，他意识到自己可能已经接近真相。
潜入地下
经过几天准备，professor finally decided to explore the underground facility. He found a hidden entrance in the school's basement and made his way down into the tunnels. The air was stale and the walls were damp, but he could feel the excitement building up inside him.
As he walked deeper into the tunnels, he came across a series of secret rooms. Each room contained strange equipment and documents that seemed to be from another era. Professor realized that this must be the "Yan Yuan" facility mentioned in the handnotes.
But then, he heard footsteps coming from one of the rooms. He quickly hid behind a crate, watching as two people entered the room. They were talking about something important-looking document, but they didn't seem to notice professor hiding in plain sight.
逃脱危险
Professor knew he had to escape before being discovered. He slowly backed away from his hiding spot and made his way back through the tunnels until he reached safety above ground.
He couldn't believe what had just happened - it was like something out of a movie! But there was still so much more to discover about this mysterious place...
And so, professor continued his research on Yan Yuan, determined to uncover all its secrets...
