More than anything, Mu Yu was naturally curious.

Glancing outside the study and making sure that no one was around, she hesitated slightly before getting up. After hurrying toward the bookshelf, she peered into the opening between the racks.

The secret room was rather small and not elaborately decorated; only a huge book rack rested against a wall, filling its entire width. The rack was made up of many smaller compartments, and each of them were filled with ...