The Scapegoat Meets The Sin 1

Illustration for a passage of my story:

Through a cave he had wandered, derelict, devoid of all but the stale air and ashen rocks - just like everywhere else in this prison realm of Purgatory. A strange crystalline formation he passed, curious, he touched it and as soon as he did a glorious glow surged from the base and through the winding pipe-like structure, like blood through one's veins. He decided to follow it allowing the gentle turquoise luminescence be his guiding light within the lifeless walls.
He followed and followed, turning this way and that, fearing there were really no end. But that fear was quickly dispelled and replaced by one new when he reached an enormous room.
All around was a construct resembling a temple, statues of angels stood atop them, their limbs dismembered, heads decapitated, and wings torn and shattered. Light flooded in through the cave's wide agape mouth where craggy fragments floated upwards as though being sucked away by some unseen force. Betwixt the gap a giant prismatic structure lay bare to the external world, unaffected by all that surrounds it. It glowed the same way as the rock the man followed except strands of light seemed to swirl more erratically within the smaller space. There was something else - no, someone else - encased inside.
In the prison realm where one was meant to be alone...
"Who...? Who are you, fallen angel?" A voice from within the crystal cage resonated, filling the empty silence.