Beyond The Grave.
the answer is "alistair was there the night they died" (amy and dan's parents)
The Sword Thief is the third book in The 39 Clues series.The fourth book is Beyond the Grave.
June 2, 2009
There is not going to be a 12th 39 Clues book, but there is going to be a new 39 Clues series. The first book in the new series is called The Medusa Plot by Gordon Korman.
Into The Gauntlet
It is called The Black Circle.
It is called the Emperors Code
Storm Warning.
Storm Warning
Vespers Rising.
It's called The Emperor's Code
Myrrah