Fortnite has been teasing a Marvel crossover for Season 4, and even though the new season doesn't officially start until August 27, it looks like things are kicking off early. A comic book has appeared in the Fortnite lobby that sets up the story for Season 4, including the arrival of both Thor and the terrifying Galactus.

The Thor comic found in Fortnite mirrors an ongoing storyline in the real world Thor comics where the God of Thunder is serving as the Herald for Galactus. The duo are working together to find suitable worlds for Galactus to consume so that he can fight off The Black Winter and save the universe. However, while traveling through space, Galactus senses a rift that leads to the world of Fortnite. Galactus then starts heading straight for the rift, but Thor zips ahead of him to warn those living in Fortnite's world about Galactus' impending arrival.

RELATED: Epic Announces 'Free Fortnite' Cup That Mocks Apple

Fortnite players have also noticed a rift appearing above the Catty Corner location on the battle royale map, which could indicate exactly where Thor is going to first show up. One has to imagine that Thor's arrival will alter the battle royale map, so it looks like Catty Corner could be on the way out. Previously, reliable Fortnite leakers have suggested that Thor is getting his own major area on the map, so perhaps that will be its location.

Meanwhile, the inclusion of Galactus in the storyline has major implications for Fortnite's future. Epic Games is known for hosting extravagant events whenever it makes a significant change to the Fortnite map, and having Galactus consume the existing Fortnite world would certainly fit the bill. It would also give Epic a clean slate to introduce a completely brand new battle royale map if it so desired, perhaps to coincide with Fortnite's launch on next-generation consoles.

How Galactus will tie in to Fortnite Season 4 remains to be seen, but fans can expect even more Marvel-themed content to come with Season 4. Besides the arrival of Thor and Galactus, leakers have revealed that Fortnite is adding a variety of Marvel Comics skins. Specifically, skins based on Groot, Storm, and Wolverine are apparently on the way, if the leakers are to be believed.

Fortnite has done Marvel crossovers in the past, including Avengers-themed limited time modes, but nothing on this scale. Needless to say, it will be interesting to see how the world of Fortnite changes with Galactus, Thor, and Season 4 all on the horizon.

Fortnite is out now for PC, PS4, Switch, and Xbox One, with PS5 and Xbox Series X versions also in development.

MORE: Fortnite: Where to Find All Golden Eggs