Stuart G. Yates 
Tears in the Fabric of Time [EPUB ebook] 

Inspector ‘Tiny’ Tears is ready for retirement when the most unusual case lands on his desk.
A young girl, Ana, sits in the interview room, while the uniformed man who followed her lies dead. After the girl escapes, Tears pursues her and enters a world similar — yet shockingly different — to ours.
He soon learns of a mysterious group called the Silencers, and the Transference Engine, which has irreparably damaged the fabric of space and time.
As the space-time anomalies get stronger, Tiny and Ana form a grudging bond to undo the catastrophe. But are they too late?