Top drawer, first three movies were aces
Then Boris, Lon Jr replaces
With the fire extinguished,
All is dire, undistinguished
It's horror -- put through the old paces.
In The Ghost of Frankenstein (Erle C. Kenton; 1942), Lon Chaney Jr replaces Boris Karloff as The Monster, but Béla Lugosi returns as Ygor. At least Chaney made a better monster than the actors who followed him, Lugosi and Glenn Strange.