Task: Question Answering
Input (English): Passage: The film begins with the return of a group of friends consisting of Tanis Half-Elven, Sturm Brightblade, Caramon Majere, Raistlin Majere, Flint Fireforge, Tasslehoff Burrfoot. Kitiara Uth Matar, the half sister of the twins Caramon and Raistlin, was supposed to be there as well, but for reasons unexplained at the time could only send a mysterious note. The Companions had separated five years previously to pursue their own quests.On the eve of their reunion, the Companions discover that Solace, the village where many of them made their home, is very different from the peaceful village they had left five years previous. Solace has been taken over by a religious order called the Seekers. They are collaborating with the Dragon Highlords who are preparing for the conquest of the continent of Ansalon. Solace is now an armed camp as hobgoblin soldiers patrol the once peaceful village. Tanis, Flint and Tasslehoff meet up outside of Solace, and as they enter the village, they are accosted by Fewmaaster Toede: a hobgoblin commander, and some of his minions. Forced to fight, the threesome kill Toede's minions, and continue to the Inn of the Last Home to meet up with their friends, and, as circumstance would have it, two barbarians, Riverwind and Goldmoon. Kitiara Uth Matar is absent, having sent a letter to Tanis saying that "her new lord is keeping her busy".
The Companions soon discover that the Seekers are searching for a Blue Crystal Staff. When Hederick, a Seeker, is accidentally burnt when Riverwind pushes him into the fireplace, Goldmoon heals him with her Blue Crystal Staff, a holy artifact of the goddess Mishakal which possesses healing powers. Upon seeing Goldmoon with the item he had been searching for, Hederick calls for the guards, causing the Companions to flee Solace. Unknown to them at the time, this pulls the Companions into a great struggle against the goddess Takhisis, the Queen of Darkness and leader of the enemy forces. 
Question: Who does the half-elf get a letter from?
Output (English): Kitiara Uth Matar.