One success story is of my friend, Mark. He started using a stationary bike daily for 30 minutes. He combined it with a balanced diet. After a few months, he lost 20 pounds. The key for him was consistency and gradually increasing the intensity of his rides.
I'm not sure specifically what 'mercy novel' is about as it could be a very specific or self - named novel. It might be a story that focuses on themes of mercy, perhaps about characters showing mercy in difficult situations or a world where mercy is scarce.
I'm not sure specifically which 'no mercy novel' you are referring to. There could be many novels with that title or a similar name. It might be about a story where the characters face a harsh and unforgiving situation, perhaps in a dystopian world or a cut - throat competition scenario.
I'm sorry, but without more information, I can't determine the author of the 'no mercy novel'. There are so many novels out there and this name alone doesn't give enough clues to identify the author.