A similar entry appears in the Wheel of Time Companion. Other information about the character is also included in the Companion, but we did not use it in the TarValon.Net Library.
Unless stated otherwise, all information herein is taken from A Crown of Swords, Chapter 25.
A vacuole is a kind of bubble in the Pattern that is in some ways outside of the Pattern, where time flows differently, such that they can be entered and research performed in them. Occasionally, they can separate and drift off, resulting in the loss of whoever or whatever was in at the time.