"My God! It's growing even faster!" A young researcher pointed at the data panel and cried out involuntarily.
"Four times faster than in the Underground City!"
Liu Chengen planted both hands on his hips and burst into wild laughter.
"Hahahaha! I knew it!"
"Nuclear radiation is a powerful tonic for it!"
On the screen, the World Tree that had broken through the ground seemed to have shaken off all its restraints.
It leaped and cheered, growing wildly toward the sky at a terrifying speed visible to the naked eye.
It grew alongside the World Trees on the other two screens!
"Report! It's gaining more than a meter in height every ten seconds!"
"The trunk's diameter... has passed twenty meters! It's still getting thicker!"
Another researcher looked at a different set of data, his voice changing pitch.
Someone could not help asking worriedly:
"Elder Liu, the section in the Underground City... if the trunk keeps getting thicker, won't it burst this place apart?"
Liu Chengen waved a large hand, brimming with confidence.
"Relax!"
"I refuse to believe the trunk could fill this whole thousand-meter-wide underground space!"
"Besides, it's doing quite well. The branches and leaves down here haven't been pushed off as the main trunk grows!"
Hearing this, everyone turned to look at the trunk in the park.
Sure enough, although the section of trunk inside the Underground City was also massive, the branches and leaves extending from it remained their original size, lush and green.
It brought vibrant life to the entire Underground City, its green glow filling the dome with unmistakable vitality!
At that moment, outside the park, countless citizens who had rushed over after hearing the news stood behind the cordon, mouths agape as they craned their heads to look at the towering tree reaching toward the heavens.