She was slender and white-haired.
Many people had difficulty telling Adeleas and Vandene apart, even though they were from different Ajahs and did not understand such trouble.
She was the twin sister of Vandene.
After the uprising in the White Tower, Adeleas and Vandene traveled to Salidar and joined with the rebels there. They then journeyed to Ebou Dar with the group looking for the Bowl of the Winds. While in Ebou Dar they were also looking for runaway girls from the White Tower. While inside the Tarasin Palace in Ebou Dar, she faced off against the White Tower embassy as to whether Matrim Cauthon should be returned to the White Tower.
She Traveled with the the rest of the group led by Nynaeve al'Meara and Elayne Trakand from Ebou Dar to the Kin's farm with the Bowl of the Winds. She, alongside her sister, took charge of Ispan Shefar and began to question her.
She found out that Garenia Rosoinde was actually Zarya Alkaese, a runaway from the White Tower. She put Garenia back in novice white which also brought forward the confession from Kirstian that she too was a White Tower runaway.
Adeleas was killed, along with the Black Ajah sister Ispan, in the village of Cullen's Crossing. She was murdered by Careane Fransi during their journey to Caemlyn, a fact her sister discovered just before her own death.