Severus was ripped from Harry and dragged into the chamber where the Dementor was waiting.
Harry yelled at and kicked, and fought the officials holding him back and keeping him form Severus. His struggles became more frantic as he saw them strap his lover into the chair in readiness for the kiss.
"HE'S INNOCENT! You bastards can't you see, he did nothing . . . he saved me; he saved you; he saved us all!" Harry screamed his throat raw until he choked on his own voice.
The door swung shut on the chamber, solidly and with an air of finality. Harry fell limp with the hopelessness of it. Unlike with his godfather years before, there was no Dumbledore to facilitate a rescue, no time turner, no Buckbeak. He sank impotently to his knees.
In a moment it would be over, Severus, his soul mate, would be lost to him forever -- his soul sucked from his body. Harry reached out with his mind one final time, to say good bye, to poor out all the love he felt, so that Severus, where ever he was going, would always have that.
At first, in his rising terror, Severus tried to push Harry away, but Harry clung on. He was determined that Severus would not be alone, he would be with him until the last possible second, because it was the least--the 'most', he could do for this man who was part of him. Who completed him.
He felt the stark terror, the creeping, cold, soul crushing, emptiness at the first touch of the Dementor, and he clung tighter. Severus was being ripped from him a second time and he would fight it all the way. No matter how lost the cause. To just 'give up' his Severus, was unthinkable; he could cut off his wand arm with less thought and more ease.
He felt the pull, the agonising, soul tearing pull, as the Dementor sucked. He felt the blackness beyond and heard the screams of other lost souls in their torment, and in his desperation pulled Severus towards him with the full force of his will, trying to wrap him up in all the love he felt, to protect him from the emptiness and ceaseless torment.
Then suddenly, there was a blinding flash and searing pain, so much pain, and he felt blackness come crashing in around them and swallowing them, as Severus' soul was wrenched from his body. Harry passed out.
He awoke sometime later, dazed and confused in an infirmary bed. Slowly, as memory slid back into place, he became aware of his own emptiness, off his loss, a loss so great that he felt he would die from the knowledge and the pain of it alone, and he clawed at his chest as if ripping out his own heart would bring relief.
Then at the back of his mind, like the tickle of something he needed to remember, he became aware of another's consciousness awaking along side his. Tentatively, cautiously, not daring to hope, he reached for it.
Based on a prompt aired on FirstClass by Slytherinsela: what would happen if HP & SS had a 'soul bond' and a Dementor tried to suck out one of their souls.
