Not all doors are meant to be opened . . .

Enter a magical underworld of warring scholars, fickle gods, and one man's quest to change his destiny, in this spellbinding fantasy from #1 Sunday Times bestselling author Georgia Summers.

Caspian Verne is destined for greatness: to fulfil his grandmother's ambitions by joining the formidable order of scholars who form the bridge between two worlds. But the price for admittance is high - and one he's not willing to pay.

Instead, he's been seeking another path, one that could upend his grandmother's machinations for good. There are rumours of a dormant astral: a godlike being said to grant a powerful favour to those who find him. With this in hand, Caspian can carve his own destiny and finally be free.

Yet as time runs out, Caspian finds himself at the mercy of Mira, a mysterious stranger with a world-walking gift of her own. Desperate, he makes a bargain he has no intention of keeping: together, they will find the astral and split the favour between them.

As Caspian and Mira hunt the astral across worlds, they discover that not all doors are meant to be opened. His grandmother has made a terrible bargain of her own. And something dark is stalking the scholars . . .

Praise for Georgia Summers:

'A DELICIOUS READ' LAINI TAYLOR
'DARKLY WHIMSICAL AND UTTERLY HEARTWRENCHING' V.L. BOVALINO
'WRITING THAT GLITTERS' BEA FITZGERALD