But don't worry about logging onto Reddit to read a bunch of fan theories, because it's been solved guys!!!
According to Twitter user @Joe_Flash17, the Black Hood is none other than Mrs. Puff, Spongebob's boating instructor.
Camila Mendes was also totally shocked by the big reveal, tweeting: "Mrs. Puff you dog!!"
However, another Twitter user believes that Mrs. Puff is totally innocent. @rivermerrell suggested that the boat jacker, who was the thief from , is the actual Black Hood.
That's wayyy more believable than Mrs. Puff!
Now that's a cross-over we never expected, but can totally get around.