A series of alien glyphs have left Grand Theft Auto V players across the world scratching their heads as they try to uncover the mystery of the otherworldly observers who can be so readily found by those willing to look outside the lines in GTA V. One of the most prominent mysteries that players have been banging their heads against is that of the supposed "underground dungeon" that rests beneath Mt. Chiliad.

A cryptic painting atop the cable car station at Mt. Chiliad proved the beginning of the search for most players. The map appears to detail the chambers housed within a pyramid, marked inside of the mountain kind of like a skeleton. Smaller markers are scattered around the map, one which looks like an egg cracking, another which looks like a spaceship, and a final one which looks like a man riding in a jetpack.

The latter of the images has fueled speculation that a possible dungeon beneath Mt. Chiliad could hold the key to unlocking a jetpack in Grand Theft Auto V.

A hidden painting beneath the platform at the top of Mt. Chiliad (the highest point on the entire mountain) reveals another wrinkle. Look beneath the planks of wood with your camera phone or with a scoped weapon and you'll find a painting that reads: "Come back when your story is complete." Note that it's not the game's story, but rather "your story." This could have something to do with combined progression in both GTA Online and GTA V, or possibly with some sort of DLC. The meaning is unclear. What is clear, however, is that a similar UFO to the one pictured on the map is also seen on the painting.

So, is there a hidden dungeon beneath Mt. Chiliad? The evidence is certianly there, but if the dungeon is indeed present nobody has yet figured out how to gain access.

Keep an eye on GameShampoo for further GTA V updates.