Naren Bloor is the adopted daughter of

Bartholomew Bloor and ... she has the ability to send messages via shadows if she has an item (of clothing?) belonging to the receiver. Naren has appeared in the 5th and 6th book and is mentioned but not seen in the last book. Her name supposedly means "sunflower" in Chinese. She has Asian features, as she comes from China where her parents both drowned and died, and she was adopted by the good half of the Bloors.