Kill for Cure by Ishvam Sahi (easy to read books for adults list .TXT) 📕

During an ongoing proxy war, Jacob Miller is selected to go through an experiment to test out a serum belived to enhance the user's abilities beyond human capabilities. He is informed about a lethal virus injected in his body with the serum, which would kill him in 30 days. The only way to obtain the cure is to find out and eliminate nine other test subjects who had also undergone the experiment in a vast populated remote island. All ten of them may have completely different abilities, but their goal is  the same, to be the last one standing and obtain the cure.