1st American ed. - Oxford ; New York : David Fickling Books, 2008.
322 p. ; 19 cm.
Originally published in Great Britain in 2007.
When Ted and Kat's cousin Salim disappears from the London Eye ferris wheel, the two siblings must work together--Ted with his brain that is "wired differently" and impatient Kat--to try to solve the mystery of what happened to Salim.