Warning: This article contains SPOILERS for Ghosts season 4, episode 6, “The Primary Source”
AlthoughGhostsseason 4, episode 6, seemed destined to confuse the show’s premise with a new addition, the CBS sitcom successfully found a way to explain away this discrepancy. Theghosts of CBS’sGhostsare constantly discovering new powers in the afterlife and, in the process, they are always learning more about how the show’s world works. In season 3, Sass discovered that he could appear in people’s dreams and Pete found out that he could leave the bounds of the Woodstone Mansion whenever he wanted. Since then, Patience’s powers expanded the show’s existing repertoire of ghostly abilities.

Ghosts Season 4’s Break Means It’s Continuing A Frustrating Show Trend
The news that Ghosts season 4 will be off the air for a few weeks means the CBS sitcom will once again miss out on a longtime comedy show tradition.
WhileGhostsseason 4’s hiatusarrived surprisingly early, the sitcom returned with another new twist to its ghost lore. Season 4, episode 6, “The Primary Source,” saw Isaac and Sam attempt to salvage their manuscript after the publisher asked for a primary historical source that could verify its claims. In the outing’s B-story, the Woodstone Mansion’s ghosts found a ghost snail and made it their pet. This seemingly opened up an obvious plot hole but, to the show’s credit,Ghostsexplained this twist and potentially set upfutureGhostsguest starsin the form of more animal ghosts.

Ghosts Season 4 Explains Why Animal Spirits Are Rare
Thor Explained That Most Animal Ghosts Are Pure of Heart
When the ghosts discovered the snail ghost wandering across the garden, the first question was why the mansion isn’t constantly overflowing with animal ghosts. After all, there are more animals than humans on the grounds of the mansion and there always have been, and the animals die sooner than human inhabitants of any given space. As such,there should theoretically be countless animal ghosts clogging up the Woodstone Mansion at all timesunlessGhostshad an explanation for this discrepancy. Fortunately, Thro explained that most animals were so pure of heart that they never lingered in the afterlife for long.
The main characters theorized that the snail “Escar-Ghost” must have been a nasty customer during its life.
This explains why the mansion isn’t overrun with animal ghosts all the time, as most of them are “Sucked off” into the afterlife without attending to any unfinished business.Isaac’sGhostsseason 4 character evolutionis a great example of how the sitcom handles “Unfinished business,” as each of its undead characters has some lesson they need to learn before they can move on to the afterlife. In a hilarious twist, Trevor thought that caring for the snail that they had dubbed “Escar-Ghost” would result in him being “Sucked off,” but the beam of light was actually for the snail.
How Ghosts' Animal Spirit Explanation Births A New Recurring Gag
The Sitcom Can Bring Back Animal Ghosts Anytime
Now that their existence is confirmed,Ghostsseason 4 can feature most animal ghosts going forward. The main characters theorized that the snail “Escar-Ghost” must have been a nasty customer during its life, as only this would explain its persistence in the Woodstone Mansion. Thus, future animal ghosts could be similarly tricky figures who need to earn their way into the afterlife via some selfless good deeds. This meansGhostsseason 4’s upcoming episodescould feature more ghost animals, setting up a fun recurring gag while also allowingGhostsseason 4 to explore a more caring side of its title characters.