No Deadly Medicine by Trudey Martin

An elderly gentleman drops his notebook.
Verity Spencer picks it up.
A random act of kindness that plunges her into a world of corruption, cover-ups, deception and death.
When she attempts to return the notebook, Verity finds the old man shot and dying. He begs her not to hand the notebook to the police and reluctantly, she agrees. But someone is desperate for the information it contains and will stop at nothing to get hold of it.

Recently widowed, and struggling to come to terms with her husbands sudden death, Verity has to push her grief aside. She is in above her head, but she needs to find new levels of resolve and determination if she has any chance of finding out what is going on, staying one step ahead of the criminals – and keeping herself alive.