Tzeentch's offer tempted Guilliman. If he could mobilize a legion of Men of Iron capable of crushing humanity in its Golden Age, many of the problems now facing the Imperium of Man would be easily resolved.
Overwhelming power was always the most direct way to solve a problem.
Tzeentch was that kind of god. Once you let him speak, whatever came out of his mouth was sure to shake your resolve.
"What price would I have to pay for these coordinates?" Guilliman had remained silent for half an hour. His inner struggle and turmoil were beyond words.
"Our last collaboration was a good start. I would like to continue that friendship. How about this? All the coordinates are free. Consider it a way to deepen our friendship."
Guilliman did not believe a single word Tzeentch said, but Tzeentch cunningly tossed him the coordinates and vanished, as though he had never been there.
The coordinates of dozens of planets flashed through Guilliman's mind. With his intellect, he memorized them all in an instant. Around ten of those worlds lay within the Ultima Segmentum.
The might of the Men of Iron legions kept tempting Guilliman. Only after weighing the matter over and over and repeatedly steeling his resolve did he resist.
Everything Tzeentch had said was probably true, but he must have left things unsaid, such as how to activate and control the Men of Iron worlds.
What if recklessly entering a Forge World of the Men of Iron triggered some alarm mechanism and activated them, sending vast legions and fleets of Men of Iron against the Imperium? The present-day Imperium was nothing like humanity in its Golden Age. Even a portion of the Men of Iron's Forge Worlds would pose a grave threat.
To be safe, Guilliman intended to follow only