The Ancient Magus' Bride Vol. 16 (manga)

The stolen grimoire was thought long gone, but it turns out it’s still hidden within the College. But why leave the stolen goods so close to the scene of the crime? The College alchemists are left scratching their heads in confusion. Meanwhile, weeks stuck in lockdown leave tempers short, and minor misunderstandings lead to major doubts. All it takes is one small incident for strings drawn tight to snap.