This post includes major spoilers for the "A Series of Unfortunate Events" book series and the second season of the Netflix show.

The second season of Netflix's "A Series of Unfortunate Events," like the first season, is filled to the brim with Easter eggs and hidden references. They're slipped into the background and show just how deep and interconnected the Lemony Snicket universe is.

The show is adapted by Daniel Handler, who wrote all 13 books the show is based on under the pen name "Lemony Snicket." On the show, Patrick Warburton plays Snicket, and he's narrating what happened to the Baudelaire orphans, who are trying to escape the clutches of the evil Count Olaf, who wants to steal their family fortune. The second season adapts five books in all: "The Austere Academy," "The Esratz Elevator," "The Vile Village," "The Hostile Hospital," and "The Carnivorous Carnival."

It's a story filled with secret organizations, mysterious characters, and a highlight performance by Neil Patrick Harris as Count Olaf. The show also enlarges the universe from the books and takes advantage of the visual medium by slipping in jokes and clues when you least expect them. Even the opening song to each episode has clues.

Here are 48 Easter eggs and references you may have missed in the second season of "A Series of Unfortunate Events," streaming on Netflix now.

If you want to read INSIDER's roundup of Easter eggs and hidden references for the first season of the show, head over here.