Unfortunately, I've just noticed that the English version of my first book (The Next Target) has some translation issues. I unpublished it from Amazon, and intend to publish again in about one month, when it will be fully revised and edited by a native English speaker (a professional editor).
For those who bought it or downloaded for free during the free book promo days, I think Amazon will make the new edition available for free. I've already contacted their support team to ask for this.
I'll keep you informed.