At the ancestral home of the Black family (headquarters of the Order of the Phoenix), located at 12 Grimmauld Place (and invisible to neighbors), the three learned the identity of R.Wagstaff: What?Retiring President: I said the students would appreciate a brief outline of your plans for the future.As a clock gonged twelve o""clock midnight (it actually struck 13 times), the camera moved to a fireplace and before it, a massive wooden coffin set on a table.Something has been throbbing within me, oh, it""s been beating like he incessant tom-tom in the primitive jungle." (The answer: a clock).His second riddle was stuck onto the outer gate of Wayne Manor ("Tearoneoff and scratch my head.What once was red is black instead") - (The answer: a match).Dr.Meridian interpreted the riddles as coming from a "wacko" with obsessions and "potential homicidal tendencies.