内容简介：The windows between the many worlds have been sealed and the momentous adventures of Lyra Silvertongue’s youth are long behind her—or so she thought. Lyra is now a twenty-year-old undergraduate at St. Sophia’s College and intrigue is swirling around her once more. Her daemon Pantalaimon is witness to a brutal murder, and the dying man entrusts them with secrets that carry echoes from their past.