As DC Rebirth continues, more mysteries about its hidden history are being answered, and one of the biggest is that of Deathstroke's relationship to the former Teen Titans. This May, Deathstroke, Titans, and Teen Titans will crossover for a four-part event titled "The Lazarus Contract," as Slade Wilson targets the returned Wally West as part of an effort to resurrect his son Grant, aka the original Ravager.

The event is written jointly by Dan Abnett, Benjamin Percy, and Christopher Priest, and features art by Brett Booth, Khoi Pham, Carlo Pagulayan and Paul Pelletier. The name of the crossover brings to mind the famous "Judas Contract" storyline from Marv Wolfman and George Perez's New Teen Titans, which saw Deathstroke try to bring down the Titans from within, and it seems key answers may be found in the history of Deathstroke and the Titans.

When ComicsAlliance spoke to Christopher Priest last year, he mentioned that an upcoming crossover would detail the origins of both Deathstroke and Nightwing's team of Titans, which so far has been a mystery due to larger continuity issues regarding the manipulation of the timestream. It's been hinted that The Titans' history has something to do with Dr. Manhattan's meddling, so this crossover may contain big revelations for the future of the DC Universe.

Check out the crossover covers and solicitations below:

Titans #11 cover by Mike McKone / DC Comics

TITANS #11

Written by DAN ABNETT, BENJAMIN PERCY and CHRISTOPHER PRIEST—Art by BRETT BOOTH and NORM RAPMUND—Cover by MIKE McKONE—Variant cover by BRETT BOOTH and NORM RAPMUND

“THE LAZARUS CONTRACT” part one! When Deathstroke discovers that Wally West’s return holds the key to bringing his son back from the dead, he’ll stop at nothing to do just that! Don’t miss the debut chapter of the epic crossover event that you’ve been waiting for!

On sale MAY 10 • 32 pg, FC, $3.99 US • RATED T

Teen Titans #8 cover by Mike McKone / DC Comics

TEEN TITANS #8

Written by DAN ABNETT, BENJAMIN PERCY and CHRISTOPHER PRIEST—Art by KHOI PHAM and WADE VON GRAWBADGER—Cover by MIKE McKONE—Variant cover by PHIL JIMENEZ

“THE LAZARUS CONTRACT” part two! The Teen Titans collide with the Titans after both groups are targeted by the World’s Deadliest Assassin—Deathstroke! But when Robin interrogates Nightwing about his history with Deathstroke, dark secrets are revealed and alliances are broken!

On sale MAY 17 • 32 pg, FC, $3.99 US • RATED T

Deathstroke #19 cover by Mike McKone. / DC Comics

DEATHSTROKE #19

Written by DAN ABNETT, BENJAMIN PERCY and CHRISTOPHER PRIEST—Art by CARLO PAGULAYAN and JASON PAZ—Cover by MIKE McKONE—Variant cover by TONY S. DANIEL

“THE LAZARUS CONTRACT” part three! Will Slade succeed in reuniting with his son even at the risk of cataclysmic disaster? Or will the Titans and the Teen Titans be fast enough to stop him from changing the world as we know it? Find out what happens when the World’s Deadliest Assassin becomes the Fastest Man Alive!

On sale MAY 24 • 32 pg, FC, $2.99 US • RATED T+

Teen Titans Annual cover by Mike McKone / DC Comics

TEEN TITANS ANNUAL: THE LAZARUS CONTRACT #1

Written by DAN ABNETT, BENJAMIN PERCY and CHRISTOPHER PRIEST—Art by PAUL PELLETIER—Cover by MIKE McKONE

“THE LAZARUS CONTRACT” finale! The conclusion to our epic crossover is here, the consequences of which will be felt for years to come! What does the future hold for the Titans teams after this game-changing run-in with their greatest enemy? Find out here as we set the stage for the next era of Titans, Teen Titans and Deathstroke!

On sale MAY 31 • 48 pg, FC, $4.99 US • RATED T

And here are all four covers together: