My name is Ted Spark. I am 12 years and 281 days old. I have seven friends.

Three months ago, I solved the mystery of how my cousin Salim disappeared from a pod on the London Eye.

This is the story of my second mystery.

This summer, I went on holiday to New York, to visit Aunt Gloria and Salim. While I was there, a painting was stolen from the Guggenheim Museum, where Aunt Gloria works.

Everyone was very worried and upset. I did not see what the problem was. I do not see the point of paintings, even if they are worth £9.8 million. Perhaps that's because of my very unusual brain, which works on a different operating system to everyone else's.

But then Aunt Gloria was blamed for the theft - and Aunt Gloria is family. And I realised just how important it was to find the painting, and discover who really had taken it.

From the bestselling and award-winning author of the "Murder Most Unladylike" series and the Carnegie Medal-winning author, Siobhan Dowd, who was awarded the prize for "Bog Child", shortly after her death, comes the long-awaited sequel to "The London Eye Mystery". Ages: 9-13yrs