Aex, also known as the Watcher, is the blind Goddess of Knowledge, forever wearing a blindfold. She once competed with Raya-Thu for the hand of the Mage.

The Watcher lost her eyes when they were stolen by Raya-Thu, according to legend because the Mage had said they were beautiful. Forbidden knowledge seen with Aex' eyes drove the Raya-Thu, which caused her to destroy the eyes, leaving the Watcher forever blind. Despite the loss, the Goddess continues to acquire knowledge.

Priests of the Watcher concern themselves with education and the spread of knowledge, maintaining libraries and records. They often keep specific knowledge limited to specific groups, for the sake of protecting people from learning things that may harm them.

The Watcher is often asked for favours by children and young adults before exams or other tests of knowledge, and by mages trying to solve problems or acquire new learning. Most libraries have a small shrine to the Watcher somewhere.