Not waiting for a reply, Black strode briskly over to the icy window, tore open the shutters, and stared into the night. The snow was still coming down like rockets, and not long after, a chilly wind chimed in, sending various snowflakes ascatter in the moonlight, and illuminating the smooth, pale apparition of a face staring back at the scene.
Like a beacon among the sailships, a single twinkling star, oddly larger and brighter than the rest that night, suddenly blinked itself repeatedly, followed almost immediately afterward by a shooting star crossing its path. As if that were a signal of comprehension, Sirius whirred around and spoke directly to Severus.
"Come on. We've delayed too long already... here... hold on to this...." at that, he fumbled around the room, apparently looking for some sort of object- he finally pulled a long, crooked cane out of a bin in the corner of the dark room. Observing it further, he grinned mischeviously.
"Eh, there Snivellus... see you've gotten a bit ahead of your years, have you now? Hobbling around town with this now, are you?-well," he chuckled softly, "no matter. We've got to get going now, you know... so here, grab on to the end of this...and we can leave..." and with that, he held out the cane to the other man.
Severus remained still in bed, frozen by an unknown force. He stared at the ghastly form of his old schoolmate as if he had just suggested they go streaking through the heart of London at midday in the barren cold of December.
"What in the... now, you've been known to do the unpredictable in your 'glory days', Black, but this... WHY? Why the ruddy hell would you come back to haunt me? I don't need redemption! That's a thing for morons and bloody imbisols! And what exactly do you mean by taking- this..." he reached out to yank the cane out of Black's hands, but!- his touch upon the cane immediately sent an unearthly force into motion... for before he had a chance to blink, he was soaring through a blur of misty clouds, gaining speed with every breath he didn't have a chance to take.