To give more chances to the novel, and after consulting the Amazon message board, I lowered the price of Who Is Sister Love by one dollar. Apparently the average price of an ebook is around 3,99$, especially for an unknown author. I also modified the first message of the blog accordingly.
If the person that bought the book for one dollar more, I could refund the difference of course! (well, if he/she doesn't ask for a full refund that is, I hope not!)
I hope this will allow more people to discover Sister Love. For now, no sale at all for August! To be continued!