Recoil by Andy McNab.

Recuperating in Switzerland after a job that cost the life of one of his closest friends, ex-deniable operator Nick Stone has only two things on his to ask his girlfriend Silky to marry him, and to lead a quieter life. But when his newfound love disappears, Nick is forced back into action. The trail leads him to Africa and the Democratic Republic of the Congo, where it isnt long before the past comes knocking on his door. . .

Slight surface scratching on cover and light brownish spots on first and last pages. Rest of book in good readable condition!