To me, it took a long time to finally fall through the veil. My cousin hit me in the chest with that spell and I began to fall. Everything slowed down to me.
I saw Bella, wand still raised, a triumphant grin plastered across her once pretty face but now waxy and gaunt from the years spent in Azkaban.
Then my eyes sought Remus. He understood at once what was happening to me and knew he wouldn't be able to stop it. I realized it too. I was going to die the moment I fell through the veil. But I do not fear death, so I did not try to stop myself from falling, like Remus didn't try.
Kingsley glanced at me before turning back to the duel he was in with a Death Eater. Though to me, I thought he was staring for a long time.
Then my eyes sought Harry. He simply stared at me as I fell through. But his emerald eyes did not have the same look of horrifying realization as Remus' and Kingsley's. He did not know what happened when one fell through the veil. He, like many others, would have to learn the hard way.
The sounds of battle in the room sounded distant and they echoed as my back formed a graceful arch and I finally stumbled through the veil.
I still fell after I went through. Now, I had nothing to concentrate on but the sounds of battle. I heard Bella cry out triumphantly.
"SIRIUS!" Harry called over and over. Remus painfully explained that I wasn't coming back. Harry refused to believe him desperately kept calling my name, hoping I would come out.
"…I'LL KILL HER!" Harry declared. I silently begged Harry wouldn't avenge my death. I had done the same with Peter and made Harry think I had betrayed his parents.
The voices slowly became more and more distant and I could now hear faint whispers as I still fell. Harry used an Unforgivable against Bellatrix and now Voldemort is there. I wish I could still help him.
"…Harry…" That was Dumbledore. He was sending Harry back to Hogwarts. I could hear Harry inside Professor Dumbledore's office. He was obviously still upset about my death. Why couldn't Dumbledore let him cope with it? Then I heard it again and I knew why. The prophecy
"THE ONE WITH THE POWER TO VANQUISH THE DARK LORD APPROACHES…BORN TO THOSE WHO HAVE THRICE DEFIED HIM…BORN AS THE SEVENTH MONTH DIES…"
I finally fell on a solid something and I began to straighten myself up. Then I heard it. I heard Harry's voice sounding much closer than it was before.
"Sirius." came his voice, slightly muffled. It was coming from the mirror in my pocket. I whipped it out and saw Harry's face staring in to the mirror with a look of confusion.
"I'm here Harry!" I said. "I'm here. I'm sorry I left." Harry's sleeve obstructed the mirror.
"Sirius Black," he said in to the mirror.
"Harry!" I cried, sounding a bit desperate. "I'm right here! I can see you! I'm right here and I'll stay here for as long as you need me. Harry, please answer me! Why can't you hear me?"
But Harry still couldn't hear me and was becoming angry while I grew upset.
"Harry!" I said, my voice cracking. "I'm here! I'm here! Please don't get angry! I'm staying right here for you."
Harry still couldn't hear me and in his anger he threw down the mirror. I heard the glass on the other end shatter before I saw nothing more in the mirror but my own reflection. I broke down and started crying right there. I was so desperate to just talk with Harry, almost as desperate as he was to talk with me and now any hope or chance for that seems lost.
After I cried for what seemed an eternity, I stood back up and looked around. I saw an odd mist straight ahead of me, invisible whisperers mingling somewhere in it. Not looking back from where I came, I walked straight in to the mist, not knowing what was waiting for me.