There has been great debate amongst fans of the Marvel Cinematic Universe’s “Avengers’ franchise about the current holder of the elusive Soul Stone. Many people postulate that it is in the possession of Heimdall. This coming April 27, Thanos will fight the Avengers and the Guardians of the Galaxy for the mysterious Infinity Stones.

Where is the Soul Stone?

Before we discuss the Soul Stone, let us first recall the locations of the Infinity Stones that were established in the MCU so far.

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The final events of the movie, “Thor: Ragnarok” will be the starting point of the third "Avengers [VIDEO]" film. This has been established in order to serve as the springboard for the story.

It is highly possible that Thanos would be able to get the Tesseract from Loki, who happened to steal it before Surtur destroyed Asgard to smithereens. Therefore, the Space Stone would be the first Infinity Stone to decorate his gauntlet.

The Aether or the Reality Stone is in the possession of Taneleer Tivan, commonly known as The Collector. The Power Stone or the Orb is in the hands of Xandar after Peter Quil and his band of miscreants surrendered it for safekeeping and in exchange for their freedom.

The Mind Stone, on the other hand, is in the possession of The Vision. According to the recent trailers, Vision’s life would be in great danger as Thanos will come and steal it from him. Another Infinity Stone that would be in grave danger is the Time Stone that is in current possession of Doctor Strange.

These two heroes will be in direct conflict with the Mad Titan and his Black Order.

Heimdall keeps the Soul Stone?

As to the elusive Soul Stone, it is possible that it is somewhere in the galaxy since it was not found in Wakanda during the events in “Black Panther” movie. The Soul Stone is the final piece of the puzzle in that the whole Marvel Cinematic Universe is trying to set up since the very first “Iron Man” movie back in 2008.

A popular fan theory suggests that Heimdall keeps the Soul Stone. Think about it; it was mentioned many times that Heimdall can see every living soul in the whole universe. His powers might be coming from the last Infinity Stone that Thanos is searching for.

Another wild fan theory is that the Soul Stone is located somewhere in the universe, a desolate planet, perhaps. Somewhere that can only be accessed by using the Space Stone since it is very far. It is the only explanation why it hasn’t surfaced over the years.

Tomorrow [VIDEO] is the day when we all find out if any of these crazy fan theories are true.