Heart of Atlantis

The Heart of Atlantis is a powerful crystal which was one utilized by the Atlanteans.

During the Great Flood, the Crystal was fragmented, its parts scattered throughout the Multiverse. Over time, certain groups discovered them, such as the Three Dark Lords, and used them for Multiverse travel.

In the Epilogue of Bravo in Atlantis, the king reveals that the crystals that the Rosario Bravo team where around their necks will be a symbol of things to come.