From Anne Frank: The Diary of a Young Girl, give a detailed account of third burglary in the annex.

The third burglary in Anne Frank: The Diary of a Young Girl happens on Sunday, 9 April 1944, but the diary entry is dated Tuesday, 11 April 1944. At 9:30 p.m., Peter quietly informs Mr. Frank that there is a problem by asking him for help with an English sentence. Anne sees through this and knows something is up. All four men go downstairs and discover burglars entering the warehouse through a broken plank in the door. Mr. Van Daan scares them away by saying "Police!" The burglars run off, but not too far, because as the four men attempt to patch the door, the burglars run up and kick it in again. This infuriates Peter and the men are shocked at such a daring attitude on the side of the burglars.

By 10:00 p.m. the women hear footsteps on the stairs and they aren't sure whom they will see. Fortunately, it is their men and they tell the women to go upstairs and turn off the lights because the police should be coming to check things out. The men leave to check everything again and return at 10:10. Once they are all hidden and quiet, the women get all of the news of what happened downstairs.

During the second attempt to fix the plank in the door, a couple walks by and shines a light into the building. This scares the four men and they pretend they are burglars so the couple will go away. This is why they think the police with come; they figure that the couple will report that second activity to the authorities. Later, it is discovered that the couple was the Greengrocer with his wife, and he decided not to call the police because he respects Henk. He also says to Henk, "I don't know anything, but I guess a lot," suggesting that he may know there are Jews in hiding upstairs.

By 11:15 p.m., those in hiding hear police walking around the building, most likely inspecting the place and checking out the damages. The hall light in front of the cupboard, or bookcase, that guards the entrance to the annex is turned on. Someone tries to get behind the case twice, but the attempts fail. The light in the hall remains on after the police leave, so Anne wonders if someone is guarding the bookcase and someone will return; or did they simply forget to turn it off? 

The families remain quiet and in the dark until 5:30 in the morning. They go to the bathroom in the pail in Peter's room. Miep and Henk appear the next morning around 10:30 a.m. Miep finds a letter from the nightwatchman, Slagter, who had noticed the broken plank and had called the police. He and another policeman did walk through the building, but because Sunday and Monday are holidays dedicated to Easter, they plan to contact her on Tuesday.