31 YA Mystery Books that are Absolute Must-Reads

"Jackaby" ($8) by William Ritter is a not-so-typical rendition of the traditional young adult mystery books. Set in 1892, the story centers on R. F. Jackaby, a supernatural Sherlock Holmes, and his new assistant Abigail Rook as they investigate a serial killer who may not be human at all. The wonderfully creepy tale not only dazzles with its world-building, it will also keep you up at night thanks to its clever plot twists.