Harry Potter: BE a GOD

The moment the red spear entered the atmosphere, Murphy detected its presence through the precision radar matrix. When the spear split into three, he immediately calculated the landing points of the three spears. Then, he activated the "Time Magic Box" he carried and went back to five hours earlier.

This was one of the plans made in advance: if the moon attack failed and there were signs that his side might be hit, he had to immediately go back to the past to prepare for the possible attack.

The timing of this time travel was very important; he had to make sure his side was going to be hit, yet he had to go back before the attack actually arrived and caused damage. Confirming an incoming attack was crucial for gathering information about the possible mode of the attack, which would allow for a targeted response.

But the necessity to act "before the attack arrives" was to avoid the "Observer Effect in Time". This effect means that once any observer observes an event, that event has definitely occurred for that observer, regardless of any time travel. In short, it's possible to use a time converter to go back to the past, but a time traveler can't change what has already happened. Future events are, in fact, the results after the time traveler's influence.

When Muggle scientists began studying the time converter, they observed and confirmed this phenomenon, which they named "The First Law of Time Travel".

Under this iron rule, if you see someone die in a car accident, any attempt to go back in time to change this reality will not succeed. To save someone who might die in a car accident, you must go back before the car actually kills them.

This leads to the second law of time travel: the Incomplete Information Law. Any event you can change through time travel is one where you're not certain of the final outcome.

Once you're certain an event will happen, you can't change it; you can only change things that might happen.

Under these laws, time travel, in some scenarios, is merely a way to increase the chances of success, not a means for trial and error.

The timing and method of its use are very delicate, sometimes its tactical role is virtually the same as "pausing time" or "speeding up time", so Murphy doesn't often use it.

However, the terrifying magical power on that spear was extraordinary, and he almost immediately judged that it might have the power to destroy a city. The landing sites in London and Arkaim, in his prior knowledge, were unlikely to withstand such an attack.

Moreover, the few messages he had just received gave him some guesses. If Jim Best wasn't deceived, then the person directing him might be Murphy himself in the future.

And the highest management authority of the "Binary Tree" supercomputer couldn't be breached. For someone other than Murphy to obtain the highest management authority, they first had to face a cryptographic problem that couldn't be solved even with quantum computers. If someone tried to use a "Unlocking Spell", the magical energy consumed would be enough to create an Earth out of nothing.

Therefore, the person who issued the attack command was likely Murphy himself.

This was a hint that he needed to go back to the past: because the future him did indeed go back.

Murphy returned to five hours ago and left the combat command center. The moon operation had failed, a fact observed and unchangeable. He had already used almost all his resources on this plan; even if he tried again, he couldn't do better, so there was no point in intervening.

What he needed to do was just to avoid major losses under the attack. He first checked the situation of the "Binary Tree", confirming no one had invaded. Then, he thought for a while and pre-made an order, directing the combat machinery to the landing site in Siberia.

Then, he went to London, found the magic research group, and discovered they were already working on the "Magic Barrier". Murphy asked a staff member and found out they had started this work five hours earlier. Because it was a sudden directive, it hadn't gone through the normal project process, so Murphy was unaware.

"This means that it wasn't my time travel this time that instructed them to create the magic barrier."

"Will I go back once more?"

He learned about the so-called magic barrier, a magic technology mimicking Arkaim's "Holy Wall". The technology wasn't complex; the most important part was connecting the magic barrier to the magic network, relying on the continuous magical energy in the magic network for support. Theoretically, unless the attacker's magical energy was greater than the energy flowing through the magic network node, it couldn't be breached.

He felt somewhat relieved; clearly, this technology was intended to counter the spear's attack.

Lastly, he arrived at Arkaim. At this moment, the city of wizards was brightly lit, as if celebrating a grand festival.

Murphy had just appeared on Heaven Street when several wizards surrounded him, and a young wizard handed Murphy a bunch of flowers, "Congratulations, Grand Shaman, blessings to you and the Empress."

He made his way to the Spring Palace, and everyone smiled at him. But when he finally saw the Empress, he understood the meaning of those smiles.

Sophia was wearing a gorgeous dress robe with a golden ring on her left hand. She looked at Murphy with a smile, "Why have you come back again?"

Murphy looked at the ring on her left hand with a complicated expression, "This couldn't be…"

The Empress raised her hand, showing him the ring, "You gave it to me. We're engaged, Mr. Murphy."

"..."

Murphy was momentarily speechless, facing this bizarre self-NTR plot.

"The future me?"

Sophia nodded.

"You said 'again'. Have I come back more than once today?"

Sophia nodded again.

"Then you know why I came back this time, right?"

To avoid the "Observer Effect", time travelers try to minimize the amount of information they receive, so Murphy's questions were very straightforward.

The Empress thought for a moment and understood, "You're the first one back? Then you're here to warn me about the danger to the holy city? But don't worry, Arkaim is safe."

Murphy felt relieved, "Did the future me tell you this?"

"Yes. You reminded me to connect the Holy Wall to the magic network. You came back this time for this, right?" the Empress said.

Murphy was completely reassured.

The future him observed that Arkaim was safe, then told the Empress. According to the Observer Effect in Time, Arkaim's safety was a confirmed fact that couldn't be changed.

Relieved, Murphy looked at Sophia again, curious why he would specifically return today to get engaged to the Empress.

But it was a bit awkward to ask, and now that he had confirmed their safety, he needed to go back to address the remaining issues.

...

Sophia watched Murphy disappear in front of her, knowing he had returned to a few hours into the future.

She gently touched the ring on her left hand.

She hadn't lied.

Arkaim was safe.

But she also hadn't told the whole truth.

However, the outcome was already determined.

This was a step she had to take, yet it was also a choice she made from the heart.

Mr. Murphy, goodbye.

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