Hamlet knows Horatio may be suspicious of the letter, because of what it says, and the nature of the characters who brought it. So, Hamlet has added this line which Horatio will recognize as the kind of thing Hamlet would write. It isn't any prearranged code, Hamlet is simply relying on Horatio knowing him well. Horatio does recognize, "yeah, that's Hamlet," the letter is real. | Hamlet knows Horatio may be suspicious of the letter, because of what it says, and the nature of the characters who brought it. So, Hamlet has added this line which Horatio will recognize as the kind of thing Hamlet would write. It isn't any prearranged code, Hamlet is simply relying on Horatio knowing him well. Horatio does recognize, "yeah, that's Hamlet," the letter is real. |