While Alice’s own mutation has reached a stable and non growing condition, Slugboy’s has not. Slugboy’s keeps growing. We aren't sure if Slugboy will be able to make it, or if he can even a produce a intelligent thought anymore. (Alice says that’s bullshit, he is still just as brilliant as before.)
Slugboy has a real name. Slugboy was a boy once, after all. But no one uses that name anymore. Because he is a slug now.