- ISBN: 9780545943956 (sound recording : hoopla Audio Book)
- ISBN: 0545943957 (sound recording : hoopla Audio Book)
- Physical Description: 1 online resource (1 audio file (5hr., 43 min.)) : digital.
- Edition: Unabridged.
- Publisher: [United States] : Scholastic Audiobooks : 2016.
|Restrictions on Access Note:|| Digital content provided by hoopla.
|Participant or Performer Note:|| Read by David Pittu.
|Summary, etc.:|| The thrilling conclusion to 39 Clues Part VI: Doublecross. A Cahill family member from the past is bent on revenge!
|Target Audience Note:|| 580 Lexile.
|System Details Note:|| Mode of access: World Wide Web.
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