They went to the Ocean and Ellen said that her mom has never been that close to the water
when the german soldiers came to her house when ellen was hiding there
Ellen wears a locket. That is why Annemarie wanted Ellen to take it off when the solders came to Annemarie's house.
Because they can be prepared when of if the Germans come and search the house.
The first thing Annemarie had to do after returning to her Uncle Henrik's house in "Number the Stars" was explain the events that had taken place when the Nazis stopped her and Ellen on their way to Uncle Henrik's boat.
Mama's true reason for choosing the country path to Uncle Henrik's house was to avoid suspicion and detection by the German soldiers who controlled the main road. By taking the country path through the woods and fields, Mama hoped to evade their scrutiny and reach Uncle Henrik's house safely with Ellen and Annemarie.
Ellen does not die in Number The Stars. She makes it to Sweden Safley with her family.
Annemarie's dad is not happy that Ellen is sleeping at his house because it puts the entire family at risk due to the dangers surrounding them during the occupation of Denmark by the Nazis. It is a tense and dangerous situation for everyone involved.
Ellen spends the night at Annemarie's house because it is not safe for her to return to her own home due to the German occupation of Denmark during World War II. Annemarie's family offers her shelter and protection, demonstrating their strong friendship and willingness to help each other in times of need.
In chapter 7 of "Number the Stars," Annemarie hides Ellen's Star of David necklace in a handkerchief and tucks it into the coffin of Great-aunt Birte. She does this in order to keep the necklace safe and hidden from the Nazis.
The German Soldiers come to Uncle Henrik's house unexpectedly and ask who is in the casket.
Ellen pretends to be Lise Johansen, Annemarie's older sister who had died several years earlier. She does this to avoid being identified as a Jewish girl hiding from the Nazis. This ruse allows her to escape suspicion and maintain her safety.
Mr. Rosen had dropped his pocket watch at Uncle Henrik's house. It was a special family heirloom that he had inherited from his grandfather.