Complex sentence: The Aes Sedai of Robert Jordan's "Wheel of Time" series are described as ageless as well; a feature of their magical abilities extends life and makes their age difficult to place even with the evidence of white hair or physical frailty.
Split into simpler sentences: The Aes Sedai of Robert Jordan's "Wheel of Time" series are described as ageless. A feature of their magical abilities extends life and makes their age difficult to place despite their white hair and physical frailty.