Corianin Nedeal

From A Wheel of Time Wiki

Corianin Nedeal was an Aes Sedai and, prior to Egwene, the last known Dreamer. She studied Tel'aran'rhiod in detail, as well as many ter'angreal related to Tel'aran'rhiod and Dreaming, in particular the twisted ring that Egwene uses to enter Tel'aran'rhiod. Verin Mathwin found the ring and a collection of her notes only by chance, all records of the ter’angreal had been removed from the official records. This brings into question how much information Corianin withheld from the White Tower in her research.