After the gang travels through the mirror, Chip mentions the story "The Adventure of the Conan Doily". This is obviously a reference to Sir Arthur Conan Doyle, the author of the Sherlock Holmes series, which this episode is based on.
Scenes prominently featured in the intro video, such as the Rangers Plane flying through a forest in a story night and the rangers hiding in the foot of a suit of armor, appear in this episode. Characters from this episode, Lord Howie and McDuff the dog, also appear in the intro.