"Mathematics." . . "Serial murderers Fiction." . . . . "Mystery and detective stories." . . "Criminal investigation Juvenile fiction." . . "Homelessness & Poverty." . . "Criminal investigation." . . "Serial murderers Juvenile fiction." . . "Mysteries & Detective Stories." . . "Serial murderers." . . "Criminal investigation Fiction." . . "Fiction" . . "Fiction"@en . . "Juvenile works" . "Juvenile works"@en . . . . . "Electronic books"@en . . . . . "\"A math-whiz from a trailer park discovers she's the only student capable of unravelling complex clues left by a serial killer who's systematically getting rid of her classmates\"--" . . "\"A math-whiz from a trailer park discovers she's the only student capable of unravelling complex clues left by a serial killer who's systematically getting rid of her classmates\"--"@en . . . . . . . . . . . . . . . . . . "Nearly gone" . "Nearly gone"@en . "Mathematics Fiction." . . "Paranormal." . . "Mathematics Juvenile fiction." . .