Zsuzsa N. Kiss Book order (chronological)

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 beset him. The two great powers of the many worlds are lining up for war, and Will must find Lyra, for together they are on their way to battle, an inevitable journey that will even take them to the world of the dead...

In a remote house in the middle of Dartmoor, six shadowy figures huddle around a table for a seance. Tension rises as the spirits spell out a chilling message: Captain Trevelyan . . . dead . . . murder. Is this black magic or simply a macabre joke? The only way to be certain is to locate Captain Trevelyan. Unfortunately, his home is six miles away and, with snowdrifts blocking the roads, someone will have to make the journey on foot. . . .