Father Mulligan is the eighth and next to last book of the Asps series. In this book, a billionaire unhappy with Jim Scott is behind repeated attempts on his life. The Asps have a mission in Zambia, and on the way home divert to the Cayman Islands with Jim and Holly aboard the C-13-0 with them. That leads to the first attempt. The team also get involved trying to thwart a terrorist attack in America, even though it is far outside their purview and well against the law to so since they are CIA and Military.