RH Tucker’s ‘King of Hearts (Kings of Karmichael Book 1)’, Delightful Free Kindle YA Romance Book, Deals Authors, Promote Your Book to 4 Million Readers. Become A Bestselling Author. Free Kindle Books – YA Romance *King of Hearts (Kings of Karmichael Book 1) by RH Tucker. Price: Free. Genre: YA Romance, Contemporary. Rated: 4.8 stars on 9 Reviews. 238 pages. ASIN: B07ZZL4NV1.