在雨夜的墙壁上，怪影扭曲地舞动，仿佛是老一辈民间禁忌的化身。费宏宇被闪电惊醒，他知道那个猥琐的男人将卖给他一枚珍贵古钱币，那是他梦寐以求的收藏品。一套十二枚可以拍卖至五百万元，而费宏宇只有五枚。

他们已经交易过两次，七枚钱币已归于他的名下。那个人对他说：“只要半夜雷声响起，你来找我，我会给你一枚。”这句话意味着什么？难道雷电交加时天上会掉落古钱币，或是在这样的天气里去偷盗？

“这么晚了，你怎么还不睡？”妻子的低语打断了费宏宇的沉思。他看向身边美丽妻子，她穿着低档睡衣，但她的娇美依旧大放异彩。“马上就睡。”他心中有愧疚，为了一枚钱币，他愿意花十万块买回收藏品，但却舍不得为妻子买新衣。

当出租车驶进市场时，费宏宇的心跳加速。他紧握裤兜里的十万块。男子手中拿出一个小盒子，“又有一批古钱币。”费宏宇打开，一见到那是一枚宝贵之物，他明白对方想表达的是什么。

“嘿嘿，这样满意了吧！”男子贪婪地笑着。Fee Hong Yu knew what it meant, and he took out ten thousand yuan from his pocket. “Brother, when can I buy another one?” “As long as there's a thunderstorm at night, come find me.” The man spoke in riddles.

The next day, Fee Hong Yu went to an electronics store and bought a phone bug. He then rushed to the bus station and found the thief Ma San. “Ma San, I need to ask you something!” As he handed over five hundred yuan, he whispered quietly.

Feeling confident in Ma San’s skills, Fee Hong Yu waited patiently for two hours before receiving a call from the mysterious man. The man was talking about moving out of the city and wanted information on its layout. Fee Hong Yu knew that this was his chance.

He quickly put on his binoculars and rushed towards an abandoned hill nearby where he could see into the psychiatric hospital’s special ward. His heart raced as he climbed up the hill with rain pouring down around him.

When he reached the top of the hill with trembling hands holding onto his binoculars for dear life; suddenly; lightning struck again! And just like last time; through some strange phenomenon; an image appeared on the wall inside! It was an old man dressed in ancient attire setting up a table with maps spread across it!

The map showed several locations marked by X symbols which were believed to be buried treasure spots! The mysterious man had gotten these clues from this patient who had seen them during their trance-like state while watching TV or listening to music under thunderstorms!

This ancient person must have recorded their findings using holographic technology which would only appear when lightning strikes exactly at specific angles or positions!

With all this new information gathered by accidently discovering such incredible facts hidden within walls of mental hospitals during storms – how many more secrets are waiting for us? Only time will tell but one thing is certain: we now know that ancient civilizations did indeed use advanced technology beyond our comprehension.

In conclusion: if you ever find yourself lost in thought or wandering aimlessly around old buildings during stormy nights perhaps take a closer look at those shadows dancing upon your walls... You never know what mysteries lie hidden beneath your feet waiting patiently until someone stumbles upon them once more.

And so begins our journey into uncharted territories filled with wonderous discoveries yet untold stories awaiting brave adventurers willing enough not only explore but uncover truth behind these age-old enigmas.