• 19 Memorial Library
• 9 Cooperative Children's Book Center (CCBC)
• 8 MERIT Library
• 5 College Library
• 3 Ebling Library

• 1 Sound Recordings

• 87 History
• 15 Social life and customs
• 14 Murder
• 13 Investigation
• 9 Orphans
• 8 Magic
• 7 Demonology
• 7 Secret societies
• 7 World War, 1939-1945
• 6 Friendship
• 6 Supernatural
• 5 Fantasy
• 5 Identity (Philosophical concept)
• 5 Private investigators
• 4 Adventure and adventurers
• 4 Aristocracy (Social class)
• 4 English fiction
• 4 Executions and executioners
• 4 Fathers and daughters
• 4 Good and evil
• 4 London (England)
• 4 Lookalikes
• 4 Missing persons
• 4 Mystery and detective stories
• 4 Secrecy

• 7 Clare, Cassandra
• 7 Dickens, Charles, 1812-1870
• 3 Carriger, Gail
• 3 Harris, Tessa
• 2 Barker, Pat, 1943-
• 2 Barrows, Annie
• 2 Fellowes, Julian
• 2 Henty, G. A. (George Alfred), 1832-1902
• 2 McElwain, Julie
• 2 Penner, Sarah
• 2 Raybourn, Deanna
• 2 Rosenberg, Jordy
• 2 Shaffer, Mary Ann
• 2 Waters, Sarah, 1966-
• 1 Atkinson, Kate
• 1 Badrān, Muḥammad
• 1 Baʻlabakkī, Munīr
• 1 Ben Sussan, René
• 1 Berry, Julie, 1974-
• 1 Browne, Hablot Knight, 1815-1882
• 1 Candlewick Press
• 1 Carey, C.J.
• 1 Cattermole, George, 1800-1868
• 1 Cheaney, J. B
• 1 Colfer, Eoin

• 85 English
• 2 Arabic
• 1 Korean
• 1 Undetermined

• 89 England
• 88 London
• 37 Great Britain
• 8 Londres (Angleterre)
• 6 France
• 6 Paris
• 6 Paris (France)
• 4 Grande-Bretagne
• 3 Angleterre
• 2 Channel Islands
• 2 Great Britain Miscellaneous Island Dependencies
• 2 Guernsey
• 2 Translations into Arabic
• 1 1789-1799
• 1 18th century
• 1 Atlantic Ocean
• 1 Cambridge
• 1 Cambridge (England)
• 1 Cyprus
• 1 English Channel
• 1 Guernesey (Îles Anglo-Normandes)
• 1 Italy
• 1 Japan
• 1 Nigeria

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