Magic Steps, by Tamora Pierce
"This book was an exciting fantasy book, but parts of it were sad. I enjoyed the excitement and mystery. The book is well-written and intriguing." Reviewed by Hannah, loyal Hemphill Branch teen reader!
Quick plot summary: "When drawn into the investigation of murders perpetrated on a powerful family in Summersea, Sandy and her student Pasco undertake the dangerous mission of entrapping the invisible killers."