However, since the plan had already begun, Constantine felt it was better to stick with it, but out of curiosity, he conducted a study.
He found that as the bloodline became increasingly diluted, which is one vampire biting another until the end, many vampires had almost no strength left and only weaknesses.
That is to say, they couldn't cast any magic, their strength was barely stronger than an average human's, they still needed to feed on blood for survival, feared sunlight and Holy Artifacts, and were more like Half Vampires.
But perhaps it was precisely because of this that they had one major advantage: the control their sires had over them was not as strong. Although it still existed, it might be that due to the diluted bloodline, it became very difficult to sense them over long distances.
This presented Constantine with a possibility.
Perhaps it wasn't necessary to inscribe Runes on their hearts; Constantine just needed to select those descendants with an extremely diluted bloodline and send them to the past. Then their sires would probably have a hard time reaching them, as the greatest distance in this world is that of time.
Or in other words, it was possible to test which generation of vampire had a bloodline strong enough to control their descendants across time. Aside from these vampires, wouldn't all the other vampire descendants be free once sent to the past?
The results of the experiment were more optimistic than Constantine had imagined. The limitless expansion of vampires brought many adverse consequences, one of which was the unimaginable number of vampires with diluted bloodlines.
So, Constantine slightly altered the plan. Now he didn't need vampires to actively seek him out; he went directly to those with diluted bloodlines, scooped them up in a sack, and threw them into the time portal.
When these vampires were cast into the past, their sires, existing in the present, couldn't contact them. In the past to which they returned, their sires might not have become vampires yet, or they themselves might not have been turned. Naturally, their sires couldn't control them.
This resulted in the past timeline becoming even more chaotic, with Vampire Flash arriving in droves, and the disoriented newborn vampires without anyone to control or organize them.
Then, Constantine realized that the abrupt outbreak of the vampire disaster a few months ago seemed to be his doing.
After some research by Constantine and Shiller, the situation was actually like this.
They went back to the past and found Barry before he was turned into a vampire and set the regular Flashes on Vampire Flash.
They did go, but time continued to move normally. The Flash knew that on a certain day in the future—Constantine and Shiller gave him a rough timeline, which was about a few months ago—he would be turned into a vampire.
So, of course, The Flash would think, if I can avoid becoming a vampire, wouldn't all these Vampire Flashes cease to exist?
Even though Constantine and Shiller had advised him that if the vampires were already targeting him, it was likely that, no matter how much he struggled, he would still end up a vampire, how could The Flash not try?
He believed that as long as he stayed in an absolutely safe place during the potential time for being turned into a vampire, if he managed that time without being bitten, then the thousands of Vampire Flashes would just disappear into thin air.
He knew this, and of course, Vampire Flash knew as well. Therefore, it was paramount for Vampire Flash to ensure his own creation through a bite.
Compared to the regular Flashes, they had the advantage of knowing precisely how they were bitten. Thus, they kept driving Barry towards the location where he had previously been attacked.
The regular Flash ran ahead, while Vampire Flash chased behind. They passed through several cities, including those where Superheroes resided.
When Vampire Flash got tired, he, of course, needed to feed, and as Constantine and Shiller had surmised, they grabbed people nearby, leading to the first wave of population disappearance a few months ago.
Constantine and Shiller then cast the young vampires into the past, landing them at points in time that followed.
They were very confused but still needed to eat. However, without Vampire Flash's ability to snatch people unnoticeably using Divine Speed, they resorted to the old vampire method of transforming into bats at night to attack humans.
This officially made the Superheroes realize that the recent population disappearance might be related to vampires.
Then there were the original vampires who were likely under the King of Vampires' orders to lie in wait and didn't plan on coming out, suddenly finding that their takeout had been stolen.
The group of young vampires wasn't large in number, but they hadn't eaten any less, and the trouble they caused brought Superman to the local vampires as well.
The local vampires were baffled. They searched and searched only to find that these guys didn't exist on any family tree; no vampire could control them, and the forceful methods of control couldn't stop them.
Thus, the two sides started fighting.
As Constantine kept sending newborn vampires from the present to the past, naturally, their numbers kept growing. What could the local old vampires do when they couldn't beat them? Naturally, they sought to expand their forces by converting humans into new vampires.
That is the true story behind the explosive expansion of vampires a few months ago.
In other words, there wasn't a vampire disaster initially; it was because of the occurrence of the vampire disaster that the vampire disaster came to happen.