"Long time no see, everyone. First, let me explain that I came from the point in time when Barry had just discovered that Wells was Reverse-Flash. Be careful not to tell me anything about the future. It won't do you any good..."
Zhang Tianran successfully appeared near the Cosmic Treadmill, greeting Cisco, Caitlin, Barry Allen, and the others while patiently reminding them.
The more one knew about something like the timeline, the less one wanted to interfere with it. Even if one wanted to do something, one had to remain cautious at all times.
After all, there was no telling when the timeline might spring a surprise on you. Only idiots would alter the timeline again and again, making everything worse and worse.
"Dr. Zhang... you..." Barry Allen was completely stunned the moment he saw Zhang Tianran.
"Barry, don't reveal the future." Fortunately, Cisco understood this sort of situation and hurriedly reminded him.
"Not bad. You've finally gotten a little smarter. When it comes to the timeline, you must always maintain a sense of awe." Zhang Tianran was quite satisfied with Cisco's reaction.
Noticing Zhang Tianran's arrival, Pariah revealed a smile, as though greeting him.
"Hello, Wells. Seeing that face again really does make me feel nostalgic." After casually greeting him, Zhang Tianran shifted his gaze to the elderly version of Barry Allen.
This Flash looked exactly like Barry Allen's father.
"Dr. Zhang, we're trying to save this world. We might need your help right now..." Caitlin immediately began explaining the situation.
Zhang Tianran knew everything that had happened here, but he still listened patiently. After all, he was not the only one who had just arrived; Black Lightning had also just lost everything.
"It's simple. We only need to sacrifice one Speedster. The source of the Antimatter Wave is driven by the Cosmic Treadmill, so all we need to do is run in reverse and stop all of this." Zhang Tianran waited a moment before continuing:
"There are three Speedsters here right now, but unfortunately, I can't waste my life in a place like this..."
Hearing that, Barry Allen suddenly remembered something and murmured, "So that's how it is. It's time for Flash to vanish in the Crisis."
The moment he said that, everyone understood.
"Barry, you'll die... If the Antimatter Wave surges back into the Antimatter Cannon, everything here will be destroyed." Cisco's expression immediately changed.
"Right now, I'm the only one who can stop this." Barry Allen answered without hesitation.
Cisco thought at lightning speed, yet he could not find any other solution. Zhang Tianran, meanwhile, stepped aside and carefully examined the Cosmic Treadmill and the Antimatter Cannon.
"As expected, there's nothing I can do right now. That bastard Constantine, if he gets here any later..." After assessing the situation, Zhang Tianran realized that he could not stop anything at this moment.
The Antimatter Wave capable of destroying several universes could only be wasted here. It seemed he could not take either the Antimatter Cannon or the Cosmic Treadmill with him.
Just as Zhang Tianran was feeling somewhat regretful, he suddenly sensed a fluctuation of the Speed Force behind him and immediately entered Speed Mode as well.
"The color of your Speed Force is somewhat similar to that of an enemy I once encountered. But in essence, it is completely different..." The elderly Barry entered Speed Mode and stared at Zhang Tianran with a puzzled expression.
"Unfortunately, it's a gift from the future. I don't know why either, so I have no way to explain it." Zhang Tianran did not hide anything and answered directly.
Long ago, Zhang Tianran had noticed the difference between himself and other Speedsters... his control over the Speed Force was far too great. It simply was not normal.
But even if it was abnormal, Zhang Tianran did not care.
After all, his future self could not possibly screw over his present self. The elderly Barry was knowledgeable and quickly remembered something. He stopped dwelling on the Speed Force and immediately said:
"I've consumed too much of my Speed Force. To be safe, I hope you can share some of your Speed Force with me."
Hearing this request, Zhang Tianran hesitated. Under normal circumstances, he should help, but for a Speedster, the Speed Force was their most important resource.
Although the Speed Force could regenerate and recover, expending too much in a short period was also dangerous. Besides, according to the original plot, after the elderly Barry absorbed the younger Barry's Speed Force, it would be more than enough.
"I can give you half of mine, but I need some of your Speed Force too." After hesitating for a moment, Zhang Tianran suddenly said.
The elderly Barry found this request somewhat strange, but there was no time to delay. He directly extended his hand and completed the exchange of Speed Force with Zhang Tianran.
Immediately afterward, the replenished elderly Barry moved behind the younger Barry and reached out to steal his speed.
"I'm sorry, kid. If you live long enough, you'll always master some interesting tricks." Having absorbed enough Speed Force from the younger Barry, the elderly Barry felt excellent.
"Wait, what are you doing?" At that moment, the younger Barry Allen also realized something.
Having already prepared himself for sacrifice and said farewell to Cisco and the others, Barry Allen found this difficult to bear.
For someone as kind as him, watching someone else sacrifice themselves was even harder to accept than sacrificing himself.
"My world has already been destroyed. This is the last thing I can do. Live on. Do your best to save your world and protect your families." The elderly Barry spoke calmly.
In truth, although Anti-Monitor was the culprit behind the destruction of the universe, the elderly Barry, as the one powering the Antimatter Cannon, could also be considered an accomplice.
Though it had not been his intention, if he could make up for even a little of it, the elderly Barry was more than willing.
"Wait, Barry. I won't stop your sacrifice, but remember this: at the very last moment of your life, think of the Speed Force. Perhaps you might still have a chance to survive." Zhang Tianran offered a reminder.
The elderly Barry nodded, passed through the opening Cisco had created, and began running in the opposite direction on the Cosmic Treadmill.
Cisco hurriedly led Barry and the others away, but Zhang Tianran did not leave. He had run here himself, so he did not need to worry about getting away.
Feeling the other, different Speed Force within his body, Zhang Tianran discovered that this elderly Barry's Speed Force was not all that different from the younger Barry's. Both carried a special feeling.
Could every Barry Allen be a source from which the Speed Force was born? It was not impossible. After all, there were far too many parallel worlds and timeline branches.
There was only one Speed Force, but there were countless Speedsters.
Before you continue