Peter flashed her a frown, not wanting to bear the bad news but apparently having no choice in the matter, and sighed, reaching up to comb his fingers through his hair. He dropped his hand back to his side and took a step back, both to let Claire get his IV and to avoid the killer's anger if and when it came. "It's been ... like four months?"

Thankfully, Sylar didn't lash out; he didn't look particularly thrilled, however. "Guess that explains why I had problems standing up."

In four months time, his muscles must have atrophied from disuse. He was fairly certain that his body was working to correct this, as he felt a bit stronger with every passing moment -- his hand was healing, too, as Claire hauled the IV line out of it -- but still. The realization was more than a little disturbing.