This book contains the following story:

Dr Jekyll and Mr Hyde
In Robert Louis Stevensons novella Dr Jekyll and Mr Hyde, Henry Jekyll struggles with evil urges and so creates a potion in an attempt to mask the hidden evil within himself. Once taken, the potion unleashes Jekylls inner demon and he becomes the cruel and remorseless Hyde. And as time goes on Hydes strength grows so strong that Jekyll is unable to control it. And all ends tragically.