Sherlock almost says 'Oh good, one thing we have in common' extremely sarcastically, but he's still completely shaken by John's death and he clamps down on it, biting hard into his tongue.

He glaces where Howard's waving vaguely and his eye immediately catches sight of it, helping Howard over to it.

"Should do," He said grudgingly, as he quickly scanned the area around them, checking to make sure they weren't followed by man or beast. But they seem alone.