Dragon at heart book 2 (Crimes of Grindelwald)

Following their trip in America, Newt and Megan return to England. However it doesn't take long before they are pulled into another adventure in Paris. But what happens when Grindelwald joins the chase to find Credence?

PS: I may change the ending depending on the next film

Like I said in the last book, I don't own any of the characters and J.K Rowling should be complemented for their creation.