It's important to make sure the Surgeons' portal is stable, of course: during your visit to the year 2089, you saw the damage MetaHuman Tower sustained when the portal exploded, in that timeline's history. And even so, that explosion did nothing to stop the Surgeons pouring through to Earth. That's one piece of history you hope to change, if at all possible.
Assuming you manage to avoid wrecking your tower and getting killed, however, it occurs to you that the Surgeons possess immense power: a power that far exceeds even that of MetaHuman Incorporated and its shareholders. If you can ally yourself with the Surgeons, you have a feeling you'll be in a very strong position.
Next
At 11:25 a.m., a voice speaks behind you. "Hello."
You turn. Anaru Katariki has ascended to the tower's rooftop.
"How did you…?" you begin. He should not have been able to penetrate the tower's security. Several of your field agents train their weapons on him.
Katariki looks around the rooftop. "Brett! Good to see you again. You're looking well. And Claudette, I heard you'd kept your job here. I'm glad to hear it. Roman Halama couldn't have made a better choice."
"You're cutting things a little close," you say. "The Surgeons' portal will open in six…no, five minutes, now."
"You have my Zapp Sapper!" he exclaims, seeing what you're holding.
"It's yours?"
"I invented it," he says, nodding. "Or at least, I'm partway through inventing it. However did you…?" His eyes narrow, and then he says, "Oh, you're playing with time travel! That's a recipe for paradox. Still, that gives us a badly needed break. Gift horses, and mouths, and so on."