Sherlock doesn't know Bill's sulking habits, so he doesn't expect to find him up on the roof. His intention had simply been to get away from everyone else for a moment so he could have himself a private thought. But, he's not disappointed to find Bill. It means John's party won't be the one to do it. Safer that way. For John.
It only takes a moment for him to analyse the situation. Bill's got a gun and Sherlock is completely unarmed. Stupid move going off on his own in the midst of the zombie apocalypse without a weapon, but it would put his back to Bill to turn around to go back downstairs.
"Alone was my intention," he responds with a tightness in his voice.
Should he mention he knows about the gun? It would take the surprise out of things for Bill. He'll feel more in control if Sherlock doesn't know, which will make him less likely to pull the trigger. Probably best to keep quiet.
He takes a few steps closer to Bill, fixing his eyes on the view past the other man, but his peripheral vision is watching Bill very closely for any movements consistent with aiming the gun.
"John and the others are looking for you. They're worried, I think."
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It only takes a moment for him to analyse the situation. Bill's got a gun and Sherlock is completely unarmed. Stupid move going off on his own in the midst of the zombie apocalypse without a weapon, but it would put his back to Bill to turn around to go back downstairs.
"Alone was my intention," he responds with a tightness in his voice.
Should he mention he knows about the gun? It would take the surprise out of things for Bill. He'll feel more in control if Sherlock doesn't know, which will make him less likely to pull the trigger. Probably best to keep quiet.
He takes a few steps closer to Bill, fixing his eyes on the view past the other man, but his peripheral vision is watching Bill very closely for any movements consistent with aiming the gun.
"John and the others are looking for you. They're worried, I think."