To say that it was a dark and stormy night was a bit on the nose, but... well.
Erasmus was thankful for it. Rain of this magnitude provided cover. Vampires had other senses, and fewer considerations for their health than did the living, but most still didn't like being out in the wet where it was nearly impossible to see. He hadn't counted on anything like this, but he wasn't about to look a gift horse in the mouth. The odds were stacked against him as it was.
He sped through the rain-slicked grass, mindless of the way his own sodden clothes clung to him. In his arms was a body, wrapped in a plastic sheet to keep dry. It was a poor arrangement for his beloved sister, but there had been no time for anything better. She lay limp and unmoving; he had put her to sleep, to make it easier. There had been no time. There was no time now. He grit his teeth and tried to run even a little faster, though he was already nearly spent from the effort of having come so far.
He was nearly there. It was this thought that kept him going.
The mansion was a sight to behold, with all the gravitas and grandeur that well-kept old architecture could give it, but it left little impression on Erasmus. Like people, most vampires were creatures of habit, and all master vampires were old. What struck him was the remoteness of it. The nearest residence aside from this was nearly a mile away. He stood for a moment at the gate, drenched and panting, before resettling the weight of his burden and knocking on the door.
With this much open land around them, they had to have seen him coming. Even if they hadn't, the one he was looking for was a vampire. Chances were good that they were already awake.