On his personal Instagram account, "X-Men: Apocalypse" director Bryan Singer revealed a set photo that teased Cerebro, the device that enables Professor Charles Xavier to locate mutants telepathically in both the comics and the films. The photo bears the tag "My 4th Cerebro," referencing Singer's work on "X-Men," "X2," "X-Men: Days of Futures Past" and the upcoming installment.

Check out the photo below to see how Cerebro's construction is progressing.

"X-Men: Apocalypse" is scheduled to premiere May 27, 2016.