Dree Vandap was a young Rodian female Jedi during the New Sith Wars; specifically, she fought when the Army of Light combatted the Sith Brotherhood of Darkness.
Serving as an apprentice to Jedi Knight Crian Maru, Vandap was assigned the task of locating Kaox Krul, a particularly brutal warrior of the Brotherhood of Darkness, also known as the Madman, the Marauder, and the Dark Killer. Dree and her Master journeyed from Harpori to the Balowa system, believing they were closing in on Krul's location. However, the Marauder ambushed Dree and Crian, destroying their ship and sending it spiraling towards a crash landing on the forested planet below. Despite this, Dree and Crian managed to damage Krul's ship, causing it to crash as well.
Although Dree and her Master survived the crash, they were now vulnerable on the planet, and more importantly, at the mercy of Kaox Krul, who also survived. Dree and Crian decided to create distance between themselves and the Madman by moving deeper into the forest. However, as Crian worked on repairing the ship's speeder bike that had survived, Krul attacked. Dree was forced to fight him, but Crian rescued her by pulling her onto the bike as they sped away.
The two Jedi hoped the bike would allow them to outpace Krul as they sped into the forest. However, Krul tapped into the power of the dark side, granting him incredible speed that allowed him to keep up with the bike. Krul slashed at the bike with his lightsaber, severing cables and causing it to lose power. However, Krul's attack also caused him to lose his balance, sending him crashing to the ground, allowing Dree and Crian to escape, at least for the time being.
Dree and Crian managed to evade Krul for two days, but he eventually caught up to them. The final confrontation occurred one night when Dree awoke alone in a makeshift shelter within a forest cave. Guided by her senses to a lake in the middle of the forest, Dree found her Master standing at the edge of the water. Suddenly, Krul appeared and attacked Crian. Dree watched as Crian exchanged blows with the Dark Killer, and she realized her Master was losing the fight. Sensing her master's need for assistance, Dree joined the battle, turning it into a two-on-one confrontation.
Despite this, Krul proved more than capable of handling both Jedi. Although Dree and Crian were both strong in the Force, Krul had fully embraced the power of the dark side. He used a powerful Force blast to send Crian flying into the lake, then leaped over Dree, landing behind her. Before Dree could react, Krul impaled her with his lightsaber. Dree Vandap fell and became one with the Force, all before the eyes of her Master.