The German soldiers come, and check if any Jews are hiding in their apartment. There is more to it, but for that you can look at pages 39 to 49, in the Number the Stars
book.
Why
Ellen spends the night with Annemarie because she is Jewish and the Nazi's are rounding up the Jewish people to send them to concentration camps. Ellen's parents send her to the Johansen's to pose as Annemarie's sister (who died several years prior before the book takes place).
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.
Ellen does not die in Number The Stars. She makes it to Sweden Safley with her family.
Annemarie and Ellen shared memories of pretending to be Kirsti's older sisters. They talked about their favorite novel, Romeo and Juliet, and Annemarie promised to tell Ellen the ending when she was older. They reflected on the past and their friendship, finding comfort in each other during a difficult time.
The Nazi's come to search their house to see if they were hiding the Rosen's. Luckily, they managed to make the Nazi soldiers to believe that Ellen was Lise (Annemarie's older sister who had passed away) by Lise's baby picture. Because Lise had brown hair when she was a baby like Ellen's hair, when Lise got older here hair turned blond.
Ellen spends the night with Annemarie because she is Jewish and the Nazi's are rounding up the Jewish people to send them to concentration camps. Ellen's parents send her to the Johansen's to pose as Annemarie's sister (who died several years prior before the book takes place).
Ellen stays with Annemarie because her family is in danger due to their Jewish heritage during World War II. Annemarie's family helps Ellen hide and keep her safe from the Nazis who are rounding up Jews in Denmark. It is a way of showing solidarity and friendship during a difficult time.
The eclipse that occurs only at night or night of a full moon in particular is the Lunar Eclipse. The eclipse only happens when the sun, Earth, and the moon are aligned the Earth in the middle.
In the book To Kill a Mockingbird, a fire breaks out at Miss Maudie's house in the middle of the night, leading to the entire neighborhood coming together to help save her belongings.
The letter 'g' is in the middle of the word, night.
The duration of Middle of the Night is 1.97 hours.