L.E. Fitzpatrick 
Every Storm Breaks [EPUB ebook] 

When a Reacher terrorist group enlists the help of a deranged serial killer, their goal is simple: bring chaos to Britain.

But when the death count starts rising, chaos comes sooner than expected. As tensions between the London elite and the surrounding slums reach a breaking point, Charlie finds himself in handcuffs on the wrong side of the border.

Government agents are closing in, and he is running out of time. When the storm comes, will any of them make it out alive?