Millie has seven days to save Annie Driscoll from a terrible fate.

Millie doesn't know how or why she has been brought into Annie's life.

But she's sure of one thing: Annie has already been dead for 68 years.

Struggling to come to terms with her uprooted life, Millie is living with her father and his new girlfriend in a building which used to house the most famous women's prison in the UK. The only remnants of that place is the old prison clock in the hall - a clock that has long been silent.

When the clock begins to strike again one night, Millie meets a young, terrified woman in a cell. Annie cannot see her, but Millie realises that she may be the key to changing Annie's fate - a fate that was sealed in 1955. But is there enough time for justice to be done?

The Midnight Clock is an immersive, imaginative novel for young adults in which past and present collide.