Amanda Lester and the Pink Sugar Conspiracy

Amanda Lester wouldn't be caught dead going into the familybusiness. Her ancestor, Sherlock Holmes's colleague Inspector G. Lestrade, is atwit. Nevertheless her parents refuse to see his flaws, and she's going to asecret English school for the descendants of famous detectives whether shelikes it or not.
 
When Amanda arrives at the dreaded school, she considersrunning away--until she and her new friends discover blood and weird pinksubstances in odd places. At first they're not sure whether these oddities meananything, but when Amanda's father disappears and the cook is found dead withher head in a bag of sugar, they're certain that crimes are taking place.
 
Now Amanda must embrace her destiny and uncover the truth.The only snag is that arch-villain Blixus Moriarty, a descendant of Holmes'snemesis Professor James Moriarty, might be involved, and he doesn't like nosylittle girls interfering in his business.