The amber spyglass – Phillip Pullman

"LYRA SILVERTONGUE, WHAT IS THIS PLAN TO VISIT THE DEAD?"

THE FORCES OF ALL THE WORLDS ARE MUSTERING TO TAKE PART IN LORD ASRIEL'S DARING REBELLION, AND TWO TINY BUT FIERCE GALLIVESPIAN SPIES HAVE BEEN CHARGED WITH BRINGING LYRA AND WILL-AND THE SUBTLE KNIFETO THE FIGHT.

BUT LYRA AND WILL HAVE THEIR OWN PROMISES TO KEEP. THEY MEAN TO TRAVEL TO THE LAND OF THE DEAD, A GRAY-LIT WORLD WHERE NO LIVING SOUL HAS EVER GONE.

EVERYONE IS MAKING SACRIFICES-WITCHES, ANGELS, ARMORED BEARS, AND MORE. BUT AS DUST DRAINS FROM THE WORLD, THE FATE OF THE LIVING-AND THE DEAD-WILL COME TO DEPEND ON LYRA AND WILL AND THE DEVASTATING CHOICES THEY MUST MAKE.