This would be another Anne McCaffrey book. (Can you tell I like her?) My copy of it is actually in a three-in-one book that has two other books from the same series in it. Just finished part one last night. It's a tad drier than most of her books, but I still enjoyed it and read the whole thing in just slightly more than a week.
Right now I mostly want to start the second book 'cuz I want to know what happens to Lunzie! It's just not nice to end a book on a cliff-hanger!