Will is the bearer of the knife. Now accompanied by angels, his task is to deliver that powerful, dangerous weapon to Lord Asriel - by the command of his dying father.

But how can he go looking for Lord Asriel, when Lyra is gone? Only with her help can he fathom the myriad plots and intrigues that best him. The two great powers of the many worlds are lining up waiting for war, and Will must find Lyra, for together they are on they're way to battle, an inevitable journey that will even take them to the world of the dead...

The third and final book in the His Dark Materials trilogy. The back of the book makes this sound a lot like Lord of the Rings, and I can only hope that it's as good a yarn. I'm looking forward to discovering this world and it's inhabitants.