Theo and Pansy
Regulus was surprised that they would go out this quickly. He wasn't one to like to sit around, but he also liked plans and time. A few hours were not preparation as far as he was concerned, but then he'd take any excuse to leave the castle.
They moved silently through the tunnel, but that was the easy part. They knew that the danger would be present at the post office. When they got there, he, Remus and Jacob moved together well, and he relied on Remus' senses to give him advance warning, but the chill from the Dementors seemed to be colder. Soon, there'd be more Dementors than people and their presence would be known.
"Mr. Nott, Mrs. Nott, follow us," he said as he gestured toward the tunnel. "Please stay quiet and let's move quickly."