October Schwartz is hot on the trail of the person (or persons) responsible for Morna MacIsaac's death in 1914--or as hot as one can be on a 100-year-old trail--when her living friend Yumi finds herself the target of harassment at school. The intrepid heroine in black eyeliner and her ghost friends sleuth their way through a mystery featuring a blizzard of suffragettes, ice-skating disasters, mystical telephones, and the Titanic, set against a backdrop of Yuletide pandemonium.