When a butterfly flaps its wings in the Caribbean, it causes storms in Europe.
The British King and Prime Minister have arrived in Georgetown, Guyana, along with the leaders of the other fifty-five countries in the Commonwealth, for its biennial meeting. Two shots ring out causing panic on the steps of the Mahaica Convention Centre.
The previous month, Tina Persad, an MI6 agent with Caribbean experience, had been sent to find out whether rumoured threats to the meeting were real or not. Then days before it was due to start, she had disappeared without trace.
Michaela 'Mike' Kingdom, a CIA analyst in London, may have been the last person to see her alive when they had a drink together in The Green Feathers. With Tina missing, Mike makes it her mission to find her friend, despite warnings not to get involved.
The butterfly may have already flapped its wings, but can Mike find Tina before the Heavens open?