Great. He... actually doesn't want to be responsible for everyone here dying, even if they are evil science gremlins. What can he do about that.

Well.

Black Tentacles. Suddenly, the lab is filled with writhing, inky-black appendages, each of which seizes the nearest gremlin or plant and holds them in place. If they don't struggle, it's quite gentle. If they do... well, broken bones will heal.

They're struggling! The plant-creatures more successfully than the gremlins. The plant-creatures are very resilient, actually; denser than regular plants, even, with layers upon layers of plant matter compressed into their vaguely humanoid shapes by magic, they pack a punch.

An alarm starts blaring around the facility, and a voice starts coming from various sound boxes around it: "This facility is now undergoing cleansing protocol gamma due to unexpected release. Please stay calm. This facility is now undergoing cleansing protocol gamma due to..."

    "Protocol gamma?" one of the evil science gremlins that is not currently resisting the black tentacles very much asks. "Isn't that the one where they kill everyone?"

        "Yes, you son of a bookah, did you not pay attention to the training?" replies someone else.

    "I don't wanna die! I have a report due next week and I'm not done with it!!!!!"

Oh for fuck's sake. Dimension Door.

"How do I turn it off?" Haruk asks the lead gremlin, whom he is now standing next to. "I can disintegrate up to ten thousand cubic feet of nonliving matter or melt almost anything into slag, if that helps."

"I—you can't turn it off, bookah!" says lead gremlin. "It's externally activated—" The doors into this chamber all shut simultaneously, thick metal slabs covering all exits. "We're doomed!!!"

("This facility is now undergoing cleansing protocol gamma due to unexpected release. Please stay calm.")

    "If you can disintegrate stuff," the non-lead technician next to him says, "disintegrate the doors and let us flee!"

Oh look one of the plant creatures just got free of a tentacle and is making a beeline for an ententacled gremlin, easy pickings.

Scorching Ray. The plant is no longer doing that.

"Ugh. Fine. If you continue to do this shit I will find you and burn you, understand?"

Without waiting for an answer, he disintegrates the door. The gremlin-holding tentacles deposit their gremlins on the floor and melt away. "Leave!" he shouts. "And make better life choices!"

They don't need to be told twice, here's a throng of fleeing gremlins. And just in time, too, as the temperature starts rising rapidly inside that chamber.

...well that's mildly uncomfortable. Haruk sighs and walks out, leaving the entangled plants to char. (They didn't have individual minds. It's fine.)

As the temperature rises, a weird noxious gas starts also being released inside the chamber. And also lighting, there's now lighting coming from places. And now actual flamethrowers. And weird energy things.

It seems to want to be really thorough with its "cleansing protocol".

Well, he's no longer in there. The noxious gas is... probably not going to be very effectively contained by the disintegrated doors, though. He picks up the pace a bit, which is to say he starts flying. (He flies quite fast.)

The tunnels spit him and his... new friends... out through an opening on a cliff. The facility starts imploding as they leave, but he also hears... a voice. In his head.

"We will be seeing you soon," the voice says, dripping with amusement.

And just outside the cave, watching the fleeing throng of evil science gremlins and looking profoundly befuddled, is a motley group including two regular-looking humans (although one of them is wearing what looks like rags except they have spikes and fire, only his face exposed), one disproportionately large human, one feline person with horns, and one member of the same species as the evil gremlins.

aaaaaa psychic headvoice??? Bad. Dislike.

Oh hey new people.

"Hello! I hope you're less inclined than those little gremlin-people to kidnap and probably vivisect me. No offense, uh, not-proven-to-be-evil gremlin."

"Did you just call me gremlin?" asks the gremlin, who seems to be currently standing inside some sort of humanoid mechanical construct. She turns to one of the regular-looking humans, the male one. "Did he just call me a gremlin? I am not a gremlin!"

"We are not the Inquest," agrees said human. "Most asura are not anywhere near as zealous about vivisection as the Inquest are."

"Did you, ah," asks tall human, looking at the quickly-imploding lab, "do that?"

"Sorry. Asura, not gremlin, noted. Uh, I didn't do that, they did that. I don't think I'm able to do that. I'm mostly about laying waste to individuals and small groups of powerful enemies, not armies or large buildings. Smaller buildings can be negotiated. I did accidentally burn down a monastery once but it wasn't intentional and you really shouldn't make monasteries out of wood anyway."

"So," says the other human, "you're not from here, are you? You have a lot of magic on you that's... very, very different."

"Don't you think the wings and glowy eyes give him away? I think the wings give him away. I guess they could be fake. Bet they're not, though."

"The wings are very real! I am definitely not from around here! Um, do you happen to know what this plane is called, I'm from the Prime Material, Toril specifically, Faerûn more specifically than that."

"Ty...ria? Oh, oooh, are you from, like, across the Mists, one of those other worlds like the one the humans come from? That's so cool, can I run tests on you, I promise they're non-invasive and don't hurt and I'll only do the ones you're okay with!"

"That's... actually a surprisingly generous set of restrictions. Sure, we can talk about whatever divination you want to perform. Am I to assume from this that your civilization doesn't have interplanar travel."

"Well, that depends on what you mean! I heard the human gods used to let them go to their worlds, like, two hundred years ago, but they left so no deal. And if you wanna go anywhere else you gotta go through the Mists and that is hard as f—"

"Taimi!"

"—udge! Do you mean wherever you're from people know how to cross the Mists safely? With, like, destinations?"