"HAHAHAHAHA! We did it! WE DID IT!"
Air raid sirens wail over Seraph City as a circle of absolute darkness widens in all directions overhead, blocking out the sun and plunging the city into starless night.
Atop the tallest building, a grayed old neko in a shimmering robe stares upwards, laughing in jubilation dancing across the border to madness. He bares his remaining fangs as his half-blind crescent pupils stretch across crimson. His silvered ears twitch as he tries to ignore the panic of the masses far below.
"It's so beautiful!" he shrieks. "Total Oblivion, all the way across the sky!"
The urchin with the gaslamp heart clutches his leg, her expression of terror betraying her smoky glasses reserved for the blind.
"What does it mean, Regent? What does it MEAN?"
"I'll tell you what it means, Wren! It means my plan WORKED! That lucky young bastard SUCCEEDED! It means...we're saved! WE'RE SAVED! WE'RE SAAAAVED!! HAHAHAHA...."
From the vantage of space, one would see the moon and slowly the Earth itself disappear through the Void's diameter.
Shortly thereafter, everything else - the Sun and the stars and nebulae blur and fade into nothingness.
Elsewhere...there is a universe very much like our own. Except there is a yellow sun missing a blue planet. And exactly where that orbit is missing is where a portal of lightless Void expands from an atom's width to the point where a planet and its moon slides through.
The Regent stares up at the new sun in silence, his knees buckle and he collapses to the concrete. Wren props up his head as the shadow of angel's wings cross over them both.
"Xavael." The Regent chuckles as he gasps for breath.
"Yes, Regent." A pale hand takes his gnarled paw as the white-robed angel kneels beside him.
"The Sephiroth?" The neko's ears perk anxiously.
Shimmering lights begin to glow through the angel's robes.
"The Tree of Life that your sister carried was connected to the greater. It's destruction hastened the End of All Things. That is why the Void became so powerful in you."
The Regent nodded in solemn agreement. "That's why...the Time Lords..."
"Yes. They taught you well. Here, the Spheres are in harmony again. Now Qlippothic can be rebuilt, and I may awaken her with this gift again. And perhaps...Ash may be rebuilt as well."
The Regent smiled. He looked beyond Xavael's face, and saw fresh grass and boughs gently swaying with springtime's blossoms. He recognized the face of the one sitting there reading a book, ,then standing and running towards him with arms oustretched.
"Yes, Koen." The angel closed his eyes and swallowed. "Go to her. She is waiting. The Void burdens you no more."
The frail old cat's chest rattled sharply a few times. Then he shut his eyes and breathed his last.
Xavael whispered a prayer over him as he nodded to the urchin. "The Regent is dead..."
Koen's body shuddered as the Gallifreyan lifecode woven into his cells began the rejuvenation process. His features flowed like wax. The sleek paw of a young neko with snowy fur squeezed the angel's hand. Xavael smiled warmly down at jade eyes marveling at the world.
"Long live the Regent!"
Later that night and across town, a young boy, shoeless, clad in castoff rags and his face covered in grime, stares at his reflection in the plate glass window of an abandoned storefront. Under the flickering streetlight he watches in astonishment as his scalp bulges and separates, and a pair of horns stretch from his temples. He whimpers from the pressure beneath his shoulder blades as two red shapes rip out from under his shirt...