Tom Falconer is in trouble. Pursued by the notorious criminal Ratsey, Tom soon finds himself alone and hungry on the streets of London. Luckily enough, the mysterious Dr. Mobius soon recruits Tom to play an important role in a play to be performed in front of Queen Elizabeth. Tom knows there’s something not right about Mobius, but he’s willing to take a risk in order to keep his neck out of Ratsey’s murderous hands. Little does Tom realize that Mobius’s dark secret will trap him in the middle of an international conspiracy, holding the fate of the English empire in his hands.

Anthony Horowitz (born 5 April 1955), is an English author and screenwriter. He has written many children's novels, including The Power of Five, Alex Rider and The Diamond Brothers series and has written over fifty books. He has also written extensively for television, adapting many of Agatha Christie's Hercule Poirot novels for ITV series. He is the creator and writer of the ITV series Foyle's War and the series Midsomer Murders.