Zeeka's Ghost — Brenda Mohammed

The drama of the Zeeka Series continues in Zeeka's Ghost: Revenge of Zeeka Book 4.
The book is the fourth installment in the five-book Science Fiction series, Revenge of Zeeka and can be read as a standalone.
Dr.Steven Sharpe invents a miracle cure for a killer disease but he and his wife Mandy are targets of unknown enemies. 
Their lives may be at stake. 
Steven must find a way to hunt down and apprehend ruthless kidnappers and save his beloved wife.
The sudden appearance of Zeeka's Ghost upsets Steven.
Does the ghost have evil intentions?
Is the ghost here to harm or help Steven and Mandy? 
How will Steven deal with a ghost on one hand and kidnappers on the other?