This Will Teach You
Written by
Michael Gallager (writer), Warren Kremer (pencils and inks), Grace Kremer (letters)
Released 1990
Published in Count Duckula #9, 01/1990.
DM heads to the Secret Department's Secret Spy School to "teach a few graduate strudents the finer points of being a world class secret agent." Things go bad when he encounters impostors who try to kill him.