I was less than inspired by the first two Crystal Singer books. Killashandra was a fun heroine, but not too appealing, and her adventures were somewhat...silly. However, I hate leaving loose ends, so I started reading "Crystal Line"...and was quite pleasantly surprised! Oh, the adventures here are still rather irrelevant. Killa and Lars could have been doing anything, that's not really the point. The point is, in THIS book, the profession of Crystal Singing, the joys and triumphs it brings and the hazards of the job are finally explored, and it's...haunting. Lars is sweet, though he still doesn't do much for me. Killa, however, finally stops being the diva and faces the past she struggled for so long to suppress and has to find what her heart is searching for. Through the course of the book, several loose ends are tied up (it's recommended that the reader not wait too long between reading "Crystal Singer" and "Crystal Line"), and the ending is...perfect.