What is the main conflict, and can you cite pages from the book to explain the answer??

Marie-Laure is a young girl who lives with her father in Paris. Her father is a locksmith for the Museum of Natural History. Marie-Laure goes blind at the age of 6 because of cataracts in her eyes. Her father patiently helps her deal with her blindness by giving her Jules Verne novels in braille and by creating a wooden replica of their neighborhood so that she can learn to navigate their neighborhood in Paris despite her blindness.

The rumors of the approaching German occupation grow and the museum prepares for an invasion, making 3 replicas of a priceless diamond named the Sea of Flames. The Sea of Flames is rumored to have a curse surrounding it: the one who keeps it will live forever, but all those he loves will suffer. After the bombing of Paris, Marie-Laure and her father flee the city, her father carrying the Sea of Flames, or a replica—Daniel LeBlanc does not know whether he carries the real or a fake. When her father discovers that the man to whom they were supposed to deliver the diamond has fled the country to go to London, they decide to continue to the house of her great-uncle Etienne in Saint-Malo. Her father once again builds her a model of the city and hides the diamond inside the replica of their house, unbeknownst to anyone, including Marie-Laure. The Germans confiscate all of the radios in Saint-Malo, but Etienne manages to keep one hidden in his attic. Marie-Laure's father is asked to return to the museum but is arrested en route and is placed in a prison camp in Germany.

The last chapter tells a short narrative of Marie-Laure in 2014, with her grandson, wondering if souls of the dead travel the same airwaves as the cellphone signals and long ago radio signals, and thus are always with us.