The Letter Opener

Things are not quite what they seem for Declan Grey, whose world has just been turned upside-down.
On the street, no money or friends, he needs to think quickly to get his life back on track and get some well earned revenge.
The first book in the Letter-opener trilogy opens up the belly of London's underground where there are more interesting characters waiting to meet Mr Grey than he might expect.
Part two of the Letter-opener series finds the police bewildered by a mysterious explosion, a retired agent who does not want to be pulled back into a world he thought he left behind for good and questions that need answers in a web of seemingly connected schemes draw Declan from one Island to another.
In the final part of the Letter opener saga, find out what the mysterious Agency has been plotting when Declan discovers he is a prisoner at their pleasure.
Can he escape and save the world or will civilisation be consigned to a future decided by a madman?