The implication of the silent apology doesn't go unnoticed, but Skulduggery takes absolutely no offence whatsoever. He'd have gone mad a long time ago if he took umbrage every time someone made reference to him being a skeleton, or how said being a skeleton might be slightly unnerving for certain people. So he simply nods and lets Aqua go first, waiting outside the door just out of sight.

That's not to say he isn't listening, or briefly scanning the room through his magical manipulation of air. Two people inside, not including Aqua, one predictably in a bed and the other right by the bedside. The bystander isn't Yosuke, judging by what Aqua said earlier, which unfortunately probably means there's someone else who might take issue with the whole skeleton thing. Skulduggery suppresses a sigh. His disguise might have been useful after all.