sentences:  Tancredi is currently employing Leonardo to create copies of the "Mona Lisa" as to finance Scarlioni's work.After Tancredi leaves, the Doctor knocks out his captor, marks the blank canvases with a felt-tip pen with the phrase, "This is a fake", and leaves a message to Leonardo to paint over his writing before returning to the present.The Doctor learns Scaroth threatens to destroy Paris if Romana does not continue the work.