Lips the colour of blood, the sun an unprecedented orange, train wheels that sound like ‘guilt, and guilt, and guilt’: these are just some of the things Mary Ventura begins to notice on her journey to the ninth kingdom.

‘But what is the ninth kingdom?’ she asks a kind-seeming lady in her carriage. ‘It is the kingdom of the frozen will,’ comes the reply. ‘There is no going back.’

Sylvia Plath’s strange, dark tale of independence over infanticide, written not long after she herself left home, grapples with mortality in motion.