Quote Originally Posted by eschmenk View Post
Keep in mind that Higgs is trying to keep his identity secret from Lucrezia (and therefore Agatha) but Gil has figured it out. Gil knows that Higgs is loyal to Agatha. An obvious way of passing a message to Agatha would be to ask Higgs to pass it on.

There really isn't much of a mystery about it.
From where do you draw the conclusion that "Gil knows that Higgs is loyal to Agatha"?