The 39 Clues: Cahills vs Vespers Series is the second story arc in The 39 Clues franchise, sequel to the original series (The Clue Hunt). This fantastic young-adult series features 6 adventure books written by bestseller authors—most of the authors also wrote the novels in the original series.
The Dead of Night is a brilliant adventure novel written by Peter Lerangis. The book was originally published in 2012 as the 3rd book of The 39 Clues: Cahills vs. Vespers, a bestselling young-adult series. In order to save the kidnapped Cahill family members, Amy and Dan are forced to take orders from the Vespers. They race against time to get the next clue in Samarkand, Uzbekistan. During the quest, Dan is receiving suspicious messages from a Vespers member who claims to be his father.
First published in 2011, Vespers Rising is the 11th and the grand finale of the exciting young adult adventure series, The 39 Clues. The book is written by 4 authors of the previous books: Gordon Korman, Jude Watson, Peter Lerangis, and Rick Riordan. Each author delivers a plot line. In 4 different plot lines, the book brings a conclusion to the first chapter of “39 Clues” competition and it introduces the new enemies Amy and Dan Cahill will have to face next, the Vespers.
The 39 Clues adventure series, an exciting adventure series for young adult, continues with the 7th novel The Viper’s Nest. First published in 2010, the book is written by Peter Lerangis. In purse of another clue to create the secret powerful serum, Dan and Amy Cahill follow the leads they get, which take them to Pretoria, South Africa. The quest will reveal a big shocking secret and probably claim the life of one of the two siblings.
The Sword Thief is the third book in the brilliant adventurous series 39 Clues. First published in 2009, the young-adult book is written by Peter Lerangis. The race to collect clues for the super serum ingredients continues. Amy and Dan Cahill have found new leads for the next clue, which is hidden in Japan. They will have to track down the truth behind one of Japan greatest leaders, Toyotomi Hideyoshi.