Here is the translation into English, preserving the original text structure, style, pacing, and details as closely as possible:
The wings twitched once, as if the creature was tasting the air.
And then it vanished.
Simply dissolved into the darkness with a clap of air, as though someone had sharply slammed an invisible door.
Tap, tap, tap…
It was lightning speed, even the guys didn't manage to see how the huge being simply ran off.
"Phew…"
Flash slowly exhaled; the sound was barely audible, but it carried relief.
"It's gone…", he whispered.
"It's gone."
Gideon slumped against the column, eyes closed, his chest heaving as if he'd just run a marathon.
His hands were shaking; he pressed them to his chest, trying to stop the tremor.
Bruno swore quietly, without volume. His fist clenched.
Only now did Ethan realize his own hands were trembling so badly that the flashlight was knocking against his fingers, as if it wanted to break free and run away on its own.
He slowly lowered the beam. The red light quivered on the floor, picking out the claw marks the creature had left behind, deep, like scars.
Flash gave him a brief look.
A barely noticeable nod, almost imperceptible, but Ethan understood.
And that was enough.
But the silence didn't last long.
Pulya suddenly growled again.
Flash spun around instantly.
"No…", he whispered.
"It's him again…"
Footsteps came from the tunnel. A figure appeared in the opening. It was a starving vampire that lived in these catacombs, a long-dried-out creature that looked like a zombie.
He smiled.
"Humans… — he rasped."
"How long it's been… I haven't tasted human in…"
His tongue slowly slid across his teeth, leaving a thin thread of saliva.
"I heard… how your hearts pound when you saw that creature…"
Flash said quietly:
"Back off, get out of here. We're not going to help you…"
The vampire tilted his head as if listening to music.
"Too late. I need to feed on someone…"
And he launched himself forward.
The vampire moved instantly.
"Run!",Flash barked.
They bolted into the tunnel.
The footsteps behind them accelerated,it kept gaining.
The vampire moved strangely, in jerks, as though his body sometimes forgot how to move properly.
He leaped, clung to walls, pushed off like a spider that had lost its mind.
"He's catching up!", Bruno shouted, hoisting Gideon more securely.
Gideon wheezed, trying to run or rather, allowing himself to be dragged along.
Pulya raced ahead, looking back, growling, ready to throw herself backward at any moment.
Flash ran last, covering the team's rear.
"Don't look back!", he yelled.
"Eyes forward only!"
The vampire leaped at Bruno, knocking Gideon to the ground.
Bruno spun and swung the sledgehammer with all his strength into the vampire's face.
Metal met flesh with a dull crunch.
The vampire was hurled into the wall. He hit it, slid down… and immediately sprang back up.
"Haha-ha!", the vampire laughed, approaching Gideon. He didn't care whom he ate.
"More…", the vampire hissed.
Flash fired with the suppressor.
Pfft!
A silver bullet entered the shoulder.
The vampire hissed; smoke rose from the wound. But he didn't stop.
"Not enough… you'll need a lot more of those little things", the creature said, slowly moving toward Gideon while clutching his shoulder.
"Move!", Flash shouted.
They ran farther. Bruno grabbed Gideon and carried him in his arms.
The vampire leaped again,this time at Ethan.
"No! Get off me!"
Ethan spun sharply and slammed the flashlight into the vampire's face with all his strength.
For a second the creature squeezed its eyes shut, the light blinded it momentarily.
Ethan picked up the pistol that had fallen from Gideon's hand. His finger trembled on the trigger.
"Damn it! Am I really going to do this?! But if not him, then me,and I don't want to die…"
He was still terrified of committing his first killing. Squinting, Ethan finally made up his mind.
Pfft!
A heavy suppressed shot rang out.
The bullet entered the vampire's neck and went straight through.
The vampire froze and looked at Ethan in surprise.
"You… filthy human… how dare you!"
He took one step forward, then another. His legs buckled.
The vampire dropped to his knees, then collapsed fully to the ground, twitched once, and went still.
Flash turned, ran up, and fired several more times into the heart and head.
Shh-shhh-shhh!
After that, the vampire's body slowly turned to ash, scattering on the draft blowing through the catacombs.
Flash looked at Ethan.
"Clean", he said at last.
Ethan stared at the drifting dust.
Something inside him quietly broke.
And at the same time pieced itself back together.
"I… don't regret it", Ethan said softly.
Flash nodded.
"Then let's go."
"Because from here on… it only gets worse."
Flash clapped Ethan on the back like an old, good friend.
They emerged from the catacombs into the industrial zone, the abandoned, dead part of the city.
Here, on the edge of the Lower East Side, behind rusty fences and leaning poles stood rows of dark warehouse hangars, and there, the guys' hideout.
The air smelled of rust, old oil, and dampness. Somewhere far off trucks hummed on the highway, but here, silence.
Only the wind chased scraps of plastic across the asphalt, and somewhere a broken pipe dripped.
The night was cold; a light rain fell, turning the ground into slick mud underfoot.
Ethan stepped carefully to avoid slipping; his boots squelched in puddles, leaving tracks that the rain immediately washed away.
The group moved quickly. Pulya went ahead, sniffing the air, ears pricked, body taut like a string.
Every few moments she looked back, checking that everyone was still there; her eyes gleamed in the faint light of distant streetlamps.
"God, we're back home", Gideon croaked, looking around.
Bruno just carried him in his massive arms, quietly nodding.