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Former British intelligence agent Mark Savannah escapes the international arrest warrant hanging over his head by taking refuge among the Tuareg of Mali. In 2008 the resurgence of fighting in the North of the country causes him to change his plans, forcing him into hiding in the Democratic Republic of Congo, where he works undercover as a doctor at the hospital in Kinshasa. Trying to survive the widespread corruption in the country, Mark becomes a direct witness to the devastating and deadly effects of a transgenic plant project funded by an international consortium that is looking for breakthrough OMG production strains while ruthlessly taking huge risks with the native population’s health. Approached once again by British intelligence to investigate the activities of the consortium, Mark finds himself involved in violent clashes between several countries’ intelligence services as they fight for control over the territory and its markets. Mark once again finds himself facing a deadly confrontation with his mortal enemy and the "sniper" who has never stopped hunting him.

416 pages, Paperback

Published February 16, 2016

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146 people want to read

About the author

Baibin Nighthawk

15 books114 followers
Baibin Nighthawk (Pen Name): Baibin writes spy fiction, thrillers and science fiction. She is the co-author of the Mark Savannah espionage series and of the Dhungwana Chronicles. She holds a bachelor’s degree in Economics and a Certificate in Art (Martenot Arts Plastiques, Paris).

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5 stars
10 (62%)
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4 (25%)
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2 (12%)
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Displaying 1 - 7 of 7 reviews
Profile Image for Wayne Marinovich.
Author 13 books248 followers
August 15, 2016
Another fast-paced spy thriller from the authors who brought you “Black Hawk Day Rewind” the first in the Mark Savannah series. Well written and deeply researched, I am always drawn to novels that are set in the wondrous settings of Africa.
I was excited to see that the story line had moved on dramatically, but still kept you informed of the key facts from the previous book. If someone was to pick up the novel without reading the first one, they could easily understand the characterisation and plot. Recommended read.
Profile Image for Laura Furuta.
2,047 reviews28 followers
November 17, 2016
Spy Thriller: The High Yield Vector: An Action-Packed Spy Thriller (Mark Savannah Espionage Series Book 2)
By: Baibin Nighthawk, Dominick Fencer
5 out of 5 stars

The story Spy Thriller: The High Yield Vector: An Action-Packed Spy Thriller (Mark Savannah Espionage Series Book 2) by Baibin Nighthawk and Dominick Fencer is a thrilling terrorism/military/espionage book. Mark Savannah escapes the international arrest warrant hanging over his head by taking refuge in the Tuareg of Mali. When the resurgence of fighting causes him to change his plans he is forced into hiding in the Democratic Republic Of Congo working as a doctor at a hospital in Kinshasa. It is there that he becomes a direct witness to a transgenic plant project. There are huge risks being taken with the native population’s health. Mark again finds himself investigating the activities of the consortium, and once again he finds himself in the crosshairs to his mortal enemy who has never stopped hunting him.

This is the second book in a series. This story is fast paced after the first few chapters. The first few chapters bring you up to date on things that happened, reintroduce you to characters and lay the ground work for the rest of the book. The mystery, intrigue and storyline are first rate and make the book very hard to put down. The cast of characters are many, however they are essential to the plot of the book. I highly recommend this book if you love lots of action and mystery. I voluntarily read a Review Copy of this book. All opinions stated are solely my own and no one else’s.
Profile Image for Art Chester.
Author 4 books3 followers
May 19, 2016
Nighthawk and Fencer build on their Mark Savannah thriller series with The High Yield Vector, another great read. The exotic foreign settings are convincing and exciting within the world of this book, including such details as a sequence on tribal decision-making. The early chapters re-introduce characters and the pace begins to accelerate, with premonitions and teasers of events yet to occur.

Corruption, violence and political intrigue permeate this Africa of 2008. However, compassion and nobility are also present, as medical volunteers valiantly strive to save the helpless victims of poverty and war. The demands of undercover work require the principal characters to change identities but thank goodness for the reader, Mark and Anaïs retain their first names.

Mark is recruited by his former intelligence associates to unravel the shifting alliances that drive the violence in the region. Humanitarian work serves as both cover and personal justification for this well-prepared flying doctor with spy credentials. Counterfeit drugs and substandard protective gear provide poor protection from rampant infectious diseases. The risk ramps up when an old adversary appears, putting Mark and his associates in direct physical danger. Toxic bananas and key characters with secret backgrounds serve to thicken the suspense.

Don't try to guess what comes next, because there are surprises in almost every chapter. This is a book that's impossible to put down.
Profile Image for Cruikshank.
119 reviews4 followers
March 21, 2016
I read Black Hawk Day Rewind: An action-packed spy thriller (Mark Savannah Espionage Series Book 1 and really enjoyed it, so this book was exciting in that it brought me right back into the world and let me continue the story with characters I had come to enjoy reading about. I really liked the writing in the first novel, and if anything this book trumped it and really brought the world and the characters to life. Mark Savannah is an interesting and complex character, and if you've read the first book you'll be glad to be associated with him once again.

It is jam packed with action and a lot of cool adventures that the characters go on, but the novel has a lot more depth than that. There is a little bit of romance and a lot of clever machinations, but once the novel sinks its teeth into you, it doesn't let go until the very end! Highly recommended series, and this entry will more than live up to expectations!
Profile Image for Brian Kitchen.
Author 5 books90 followers
January 17, 2018
This Genetic Engineering Techno-thriller is the second book in the 'Mark Savannah Espionage Series'. The plot tells the story of a former British intelligence agent, Mark Savannah who is also a doctor. Mark is on the run having been 'burned' as an agent and ends up in the Democratic Republic of Congo. There he soon finds out that a transgenic plant project funded by an international consortium is having a devastating effect on the local populace. I won't spoil the plot, but will say that it was an enjoyable read. At times there was too much scientific and medical detail for me, which is why I gave it four stars rather than five and I feel that I should have read the first novel, before reading this one. Don't let this put you off however and if you like a novel that builds the plot slowly then this is one for you.
Profile Image for Kerry Reis.
Author 3 books39 followers
June 14, 2016
To the rest of the world and the US and British secret agencies, Mark Savannah is dead, but he is hiding with a North Mali revolutionary group in Africa, hoping for a chance to head back to a more normal life in Switzerland. However, a trusted friend informs him that Switzerland is not safe and brings him another option, taking on a new identity and using his medical and aviation skills to join a “Flying for Africa” humanitarian organization that provides pilot-trained doctors to African nations. Yet soon after Mark takes on his new duties tied to a hospital in the Democratic Republic of Congo, he uncovers a secret toxic genetic crop experiment affecting a couple of nearby villages, a conspiracy he discovers is connected to an old nemesis. Mark knows he is at risk of revealing that he is still alive to his enemy, but perhaps the possibility of reconnecting with a secret love may help expose a potential worldwide crisis. This is the second book of the spy and sci-fi thriller series that began with “Black Hawk Day Rewind,” and for the most part, maintains the quick pace, complexity, and excitement, but the authors take some time at the beginning to reintroduce Mark and his connections to readers who might have bypassed the opening novel of the series. Readers will need to be patient at the start to get to the heart of the thriller.
Profile Image for Lance Morcan.
Author 20 books619 followers
April 8, 2016
Book two in series even better


I had my doubts book one in the Mark Savannah Espionage Series could be topped…Oh boy was I wrong!

Book two takes the international mystery and crime genre to another level with former British intelligence agent Savannah putting his survival skills to the test in darkest Africa where he finds himself in conflict with the deadly enemy who has never stopped hunting him.

Highly recommended!
Displaying 1 - 7 of 7 reviews

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