Roland didn't know why he took a deep breath before opening the door to Dr. Apopis' residence.
Perhaps it was the anticipation, the bloodlust that was riling up deep within his veins. Perhaps it was the remnants of his flimsy humanity. Or perhaps, it was everything at once.
Still, there was no point just standing there with his hand around the handle. He tested if he could twist it, and it did. There were no sounds of movements inside, and Roland was quite aware that the Gift of Vendetta that he received had improved his senses. It had also improved his stealth even though he and Chief Fieldings tend to not utilize it more.
Part of the joy of the chase was to make your victim aware that they were being chased. Otherwise, they would be no different from those things that hide like the Imposters or Mr. Shadow.