The book begins the morning after a fire that killed Irina Spasky, an ex-KGB and Lucian spy. The two were shaken by what had happened, not believing that Irina was on their side, after attempting to kill them earlier in the series. Using their de-coding abilities, Dan and Amy figure that the...
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(warning: may contain spoilers)
The book begins the morning after a fire that killed Irina Spasky, an ex-KGB and Lucian spy. The two were shaken by what had happened, not believing that Irina was on their side, after attempting to kill them earlier in the series. Using their de-coding abilities, Dan and Amy figure that the last words Irina spoke was actually a song: "I'm with you and you're with me and so we are all together", which points them to Pretoria, South Africa.
Here, they are given a postcard suggesting a connection with Shaka. As they unravel the history of Shaka, they find out that he was a member of the Tomas branch, and was connected to Winston Churchill. They find the clue, aloe, but are captured by the Kabras while leaving South Africa. Isabel Kabra offers Dan and Amy to join their family. When they decline, Isabel orders them tied in chairs, and chopped to pieces by a spinning propeller.
They escape with the help of Professer Bardsley, together with the vial of green liquid that they thought was their lead to the second clue in The Maze of Bones, by flying Grace Cahill's old plane. During the ride, Dan and Amy accidentally break the vial, spilling some of the contents onto Dan's arm. It turns out to be a Kabra poison. To get the antidote, they fly to Grace Cahill's home in Madagascar.
While at Grace's Madagascar home, they find a page in her journal that says, ″I am feeling melancholy today, thinking about my dear A & H and missing them so. I cannot even bear to listen to my beloved di Lasso, because of the reminder...″, and on another page it says, ″I have written Deng Xiaoping, who has agreed to grant to visit to A & H when he discovered that they, like him, are M."
This, along with a piece of music by di Lasso, leads Dan to realize that his and Amy's family branch is the Madrigals.