Holly Granger is the estranged and aggressive sister of Dawn Granger. After discovering her sister still alive Holly gained the powers of Chaos and became the new Hawk. Holly and Dawn then join the Teen Titans as reserve members, and briefly joined the team during the missing year. They didn't last long though, because Hawk's inability to get along with Aquagirl led to a lot of in-team fighting until it was too much and Hawk & Dove left.
Another Hawk, another death
After reclaiming Titans Island on the East River, Cyborg set out to create an East Coast Titans team. After the elder Titans turned down membership, Cyborg gathered a Titans East composed of Hawk & Dove, Power Boy, Little Barda, Anima, Lagoon Boy and Son of Vulcan.
During a routine training exercise, Cyborg ordered the rest of the team to take down Power Boy. But the newest Titans were shocked to discover Power Boy's burned corpse hanging from a tree. Before the team could react, they were savagely attacked by an unseen foe, however they survived.
During the new Titans mini-series and Countdown to Mystery, is shown that both Hawk and Dove managed to cheat death one more time.
In Blackest Night: Titans #1 Hawk and Dove are attacked by Black Lantern Hank Hall. Dove is immune to becoming a Black Lantern so Hank plunges his hand into Holly, killing her and turning her into a Black Lantern shortly after. She then attacked Dove and the Teen Titans before the chaos of Blackest Night ended and she died once more, this time for real.
When the Hawk and Dove
to the graveyard where Holly is buried they try to resurrect Hawk's brother to no avail. When they try to resurrect Holly, the White Lantern Ring
warns them not to try and when they ignore it, she resurrects as a Black Lantern once again however Deadman uses the ring to put her to rest. The White Lantern Entity later informs Hank that he must stop the boomerange that Digger Harkness will throw at Dove.