Mairelon the Magician by Patricia C. Wrede
I loved the Dragon series by Wrede, and I was hoping the same kind of wit and charm those books had would be brought to this novel. Unfortunately, this is a somewhat forgettable book (as a few days after reading it I can no longer recall much detail.
The main character Kim dresses as a boy and does various odd jobs to earn money. It was somewhat amusing to follow this character albeit only in a somewhat superficial manner. Mairelon, the other "main" character seemed a bit perfect but at least had witticisms which redeemed him a little.
The constant amount of secrets and odd matter of fact-ness about things which didn't seem altogether clear in the story though, detracted from my liking the book quite a bit. Also, the fact that the same characters kept popping up in the same places at the same time was more suspension of belief than I could handle.
This book is only available in an omnibus of this book and its sequel called A Matter of Magic.