Mystery resale values
31 Mystery priced on real sold comps. See what each is worth — loose or complete — before you buy or sell.
Updated August 2026 · prices refresh as new sales close.
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Firefly Gadroon by Jonathan Gash
Trio for blunt instruments by Rex Stout
The Ghost at Skeleton Rock by Franklin W. Dixon
The Secret Panel by Franklin W. Dixon
The Mysterious Mannequin by Carolyn Keene
The Clue of the Dancing Puppet by Carolyn Keene
Johnny Under Ground by Patricia Moyes
The Secret of Wildcat Swamp by Franklin W. Dixon
The Mystery of the Laughing Shadow by Dennis Lynds
Night of Error by Desmond Bagley
The Secret of the Crooked Cat by Robert Arthur
The Crisscross Shadow by Franklin W. Dixon
The Wailing Siren Mystery by Franklin W. Dixon
The spider sapphire mystery by Carolyn Keene
The Sign of the Crooked Arrow by Franklin W. Dixon
Smoke detector by Eric Wright
The Hidden Window Mystery by Carolyn Keene
While the Clock Ticked by Franklin W. Dixon
The Disappearing Floor by Franklin W. Dixon
The Mystery of the 99 Steps by Carolyn Keene
Floodgate by Alistair MacLean
The Mark on the Door by Franklin W. Dixon
The Twisted Claw by Franklin W. Dixon
The Rilloby Fair Mystery by Enid Blyton
The clue of the leaning chimney by Carolyn Keene
The Mystery of the Screaming Clock by Robert Arthur
The mystery of the brass bound trunk by Carolyn Keene
Midnight Runner by Henry Patterson
The Vivero Letter by Desmond Bagley
Overture to Death by Ngaio Marsh
Fallen Hearts by V.C. Andrews
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