I don't know how I should start but here goes nothing.
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Last chapter we see mc and the Titans meeting up and everything to investigate about a group. That group is connected with Trigon, Ravens Father. The group were waiting for the Justice league to leave Earth for some time so that they can start this mission. They have been bidding their time just for this moment. Oh right the distraction was caused by Trigon. He faked his summoning on another dimension close to earth by Tricking Dr Fate. His real goal is still Earth. So the Alex or Klein in his persona teams up The Titans to stop Trigons descend which doesn't really work out well and things go haywire which results in Trigon being summoned. Though not at even a fraction of his full power. So after failing to stop his summoning and barely stopping him from destroying the Earth. This is what happens
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The world was breaking.
Crimson cracks webbed across the sky, leaking molten light that scorched the clouds. The air itself pulsed with heat and shadow, a heartbeat belonging to something far too large for this reality.
Trigon's vast form loomed half-born from the rift four burning eyes glaring down at the shattered landscape. His laughter shook mountains.
But for a fleeting moment just a heartbeat the Titans stood victorious.
Starfire hovered above the ground, her flames dimmed to embers. Cyborg's cannon smoked from overuse. Beast Boy lay sprawled, half-conscious in the form of a massive falcon. Robin's escrima sticks sparked, one broken, his uniform scorched.
And Raven… Raven knelt at the center of the sigil, black ichor streaming from her nose, her cloak torn. The shadows coiling around her pulsed with faint violet light the last fragments of power holding Trigon at bay.
Behind her, Klein staggered forward, clutching his side. Blood soaked through the torn fabric of his coat, dripping onto the glowing ground beneath them. His usually calm expression was tight not from fear, but from pain he refused to show.
> "It's working," Robin gasped, staring at the trembling rift. "Raven whatever you're doing it's working!"
> "Not enough," Raven murmured, her voice shaking. "He's too strong. His essence is still inside this world. If I don't seal him now… he'll break free again."
Starfire landed beside her, panic in her eyes. "Then seal him, friend! We will protect you!"
Raven's gaze flickered toward them — toward the team she'd found, the family she never thought she'd have.
And then she said, quietly:
> "Someone has to stay in the seal."
Silence.
Even the wind stopped.
> "The spell can't close on its own," she continued, forcing the words through trembling lips. "It needs a conduit — a living soul to bridge both sides. Once it's done… there's no coming back."
The color drained from Beast Boy's face. "You mean—no, no, no. You're not doing that."
> "It has to be me," Raven said, a single tear tracing down her cheek. "He's my father. My burden. My responsibility."
Robin took a step forward. "Raven—"
But before he could finish, a weak voice cut through the air.
> "No."
They turned.
Klein stood behind her, blood trailing down his arm, the faint shimmer of gray mist clinging to his wounds.
> "You've done enough," he said softly. "You've spent your whole life fighting his shadow. You don't need to die inside it too."
Raven's eyes widened. "Klein, don't. You don't even understand what this magic will do"
> "I understand enough."
He smiled faintly, like someone who had already accepted the end.
> "A conduit, right? Someone to hold the door closed?"
He stepped into the circle before anyone could stop him.
The runes flared immediately — reacting to his presence, wrapping him in threads of violet and silver light.
> "Klein!" Robin shouted. "Get out of there!"
Klein shook his head. "You can't waste time arguing with me. He's already pushing back."
The ground split, a deafening roar erupting from the rift as Trigon's claw tried to break free once more.
Raven reached for him, desperate. "You don't have to do this!"
> "Maybe not," Klein said quietly, looking up at the sky, his golden-gray eyes glowing brighter. "But someone has to. And if fate asks for a name… it might as well be mine."
He turned to her not smiling, not stoic, just calm.
> "You showed me something, Raven. That even in a world full of monsters, people can still choose to be human."
He knelt, pressing one bloodstained hand over the center of the sigil.
> "So let me choose, too."
Raven's throat tightened, her voice breaking. "Klein...please"
He looked at her one last time, his gaze soft but steady.
> "Don't waste your life carrying guilt for someone else's choice."
"Remember this instead sometimes… someone must stand in the dark so others can see the dawn."
The seal blazed.
Runes ignited like dying stars. Klein's form shimmered, his body breaking apart into streams of gray mist and light as the rift howled shut.
Trigon's roar split the air a god screaming as he was torn from existence.
And then silence.
The sigil collapsed, the light fading into ash.
Where Klein had stood, only a faint circle of gray dust remained, slowly scattering in the dawn wind.
Raven fell to her knees, trembling, eyes wide and hollow. The silence around her was deafening.
Beast Boy whispered, "He… he took her place."
Robin closed his eyes, his voice hoarse. "He made his choice."
Above them, the first rays of sunlight pierced through the ruined clouds.
And for a moment just a heartbeat the wind carried a soft, familiar whisper through the air:
> "You did well, Raven."