The fall season has brought a bounty of anticipated audiobook sequels for fans. Philip Pullman has capped off the His Dark Materials trilogy with Lyra's Oxford, not so much a sequel as a companion to the three fantasy novels. This latest adventure-essentially a short story-takes place two years after the events that close The Amber Spyglass and contains numerous intricate tidbits that close listeners will find a delightful challenge. The author reads here, along with many returning members from the full cast that made Pullman's previous audiobooks memorable. The CD package contains a map of Oxford, something Pullman has said his fans have long requested.