The 39 Clues
The complete book series in reading order
#5 Published 2025
The Black Circle
ISBN13: 978-0545060455
#6 Published 2025
In Too Deep
ISBN13: 978-0545060462
#7 Published 2025
The Viper's Nest
ISBN13: 978-0545060479
#8 Published 2025
The Emperor's Code
ISBN13: 978-0545060486
#9 Published 2025
Storm Warning
ISBN13: 978-0545060493
#10 Published 2025
Into the Gauntlet
ISBN13: 978-0545028813
#11 Published 2025
Vespers Rising - Library Edition
ISBN13: 978-0545326063