From The Heretic Knowledge Vault
| Chapter 18|
Leah is a resident of Santuariel, and a Half Elf like Ian and Riley. She is Riley's girlfriend, totes a single-shot rifle, and used to cough up blood before becoming the guinea pig for Ian's Omega-Heal power. She looks a bit like Yomiko Readman.
Her illness is now thought to be one of those intrinsic things that Errants have. It was at one time thought that, while a congenital deformity of the lungs might seem most probable due to her half-elf heritage, a pathogen such as Tuberculosis would also explain the symptoms and be common enough in a pre-antibiotic civilization. However, this seems to have been refuted by none other than The Poe; see discussion and quote in the Healing article.
She's currently in the best shape of her life, after looking rather subpar as the result of an unfortunately timed cough that was treated by a magically-enhanced, but psychologically devastated, Ian. The consequences of this aren't yet fully known, but it's a pretty good bet that they're going to be interesting.