A Venomous Love. The Bloodstone Series, #3

A veteran, Detective Rudyard Bloodstone has fought a brutal battle and witnessed war horrors that haunt his nightmares. Now one of those horrors has followed him home from Africa. A vicious predator, the Cape cobra, can kill a man in thirty minutes. A suspect using the snake as a weapon in robberies is terrorizing London. When the crimes escalate into murder, a victim's daughter, Honoria Underhill, becomes the focus of the killer.
After several attempts on her life, Scotland Yard threatens to takeover the high profile case. With few leads to follow, Bloodstone and his partner must now fight department politics and catch the killer before Underhill becomes another murder victim.