I found this little typo in the code of the "walrus_camp" prefab file. On line 133, the variable you're declaring is "DespaenedFromHaunt" instead of "DespawnedFromHaunt". This causes the function on line 148 in the same file to become global instead of remaining local to the walrus_camp prefab (also why it still "works" and doesn't crash the game).
It's nothing too serious as it's only a very small function, I just figured I'd let it be known
Open the "walrus_camp" prefab file, scroll to line 133.