This is my first story by Willink and it was splendid from the very beginning to the end. The dynamic between Krystina and Alexander; their connection and sexual chemistry will keep the reader from putting the book down. Heart of Stone is dual POV so you get to see from Alexander and Krystina's eyes. I will say I'd had to give this read a 4 star because it was very similar to Fifty Shades of Grey. I will have to grab the next book Stepping Stone just to see what happens next.