The biodome's archive was a cavern of wonders, its walls lined with data slates and ancient machinery that hummed with the promise of forgotten knowledge. Kai, with the fungal samples carefully tucked away, approached the archive with a reverence usually reserved for sacred spaces.

The air was thick with the musty scent of paper and the tang of metal. As Kai activated the data slates, the room came alive with holographic displays, each one a window into the world of Mycology. The science of fungi, once the cornerstone of ecological restoration, now lay dormant in the hands of a young scavenger.

Kai's fingers danced across the interfaces, drawing up schematics and studies that detailed the fungi's miraculous properties. They were purifiers, healers of the earth, capable of breaking down the most stubborn pollutants and nurturing life from barren soil.

The archive told of Mycotecture, the art of building with fungi. It was a discipline that had promised a revolution in sustainable living, a harmony between human habitats and the natural world. The biobricks, grown from mycelium, had once been the building blocks of a future that now seemed within reach again.

Hours turned to days as Kai immersed himself in the knowledge. The Spore Seekers watched in awe as their leader pieced together the legacy of the Myco Architects. They had been visionaries, scientists, and rebels, all united by the belief that fungi could save a world on the brink of collapse.

With each revelation, Kai's resolve hardened. The archive was not just a repository of data; it was a call to arms, a blueprint for rebellion against the concrete chokehold of Megacity X. The Myco Architects had laid the groundwork, and now it was up to Kai and his band of Spore Seekers to bring their vision to life.