Dark Powers — Raymond Haigh

Special agent Samantha Quest is taking on the most powerful men in the country when she frees a young girl from a secure children's unit. The sixteen year-old girl has used her mobile phone to video an incident which could prove disastrous for the government, especially if information of her affair with an older man also gets out. The girl's name is Annushka Dvoskin, and her father is a powerful Russian oligarch. Unknown to Samantha, his enemies dispatch a team of hitmen to murder her and her charge. As they flee from danger, Samantha uncovers the girl's secrets, while desperately searching for the phone. Using it as a bargaining tool may be their only hope for safety. In this novel of wealth and corruption, the great and the privileged will brush aside the law and do anything to protect their power. As the killers' race to find them intensifies, Samantha and Annushka must outwit and outrun them.