39 Clues Cahills vs Vespers: #6 Day of Doom

The bestselling series returns with an even deadlier challenge, as a new enemy is revealed to be searching for The 39 Clues too...Amy and Dan's race to save the hostages reaches its thrilling conclusion. Who will be victorious? The Cahills or the Vespers? More titles available: CAHILLS VS VESPERS 1: THE MEDUSA PLOT (9780545298391), CAHILLS VS VESPERS 2: A KING'S RANSOM (9780545298407), CAHILLS VS VESPERS 3: THE DEAD OF NIGHT (9780545298414), CAHILLS VS VESPERS 4: SHATTERPROOF (9780545298421) and CAHILLS VS VESPERS 5 (9780545298438).