Grace, Jaden, and Joy get to visit historical places around the world. Having a mom who is a history professor and a dad who writes for travel magazines has its benefits. Grace and Jaden love exploring their new surroundings and going on adventures with new friends. France is filled with wonderful museums, delicious restaurants, and, of course, history. Grace, Jaden, and their newest sister, Joy are spending the summer in Paris with their parents! While their parents are busy working, Sophie, the babysitter, has them explore the attic. The kids find a mysterious painting and decide to track down the artist. But did they get in too deep? Could this painting actually be worthy millions? Who is the guy that keeps following them? Can Grace, Jaden, and Sophie find the answers and help they need before it's too late? Adventure books with longer, complex sentences, rich vocabulary, and minimal illustrations are perfect for fluent readers.