Chapter 19 -23

The dragon's bowl's placement causes Mrs. Frisby's entrapment.

Mrs. Frisby is captured by Billy and placed in a bird cage. She still managed to put the sleeping powder in Dragon's bowl. This leads her to hear the conversation about 7 rats that were found dead near a machine. She also heard that some people are coming to see the rats. Nicodemus assumes the rats are Jenner and his group. Jenner's group had 6 people excluding himself. Nicodemus also assumes that the people are from NIMH. Justin frees Mrs. Frisby from her cage. Her house is successfully moved. Nicodemus says that she has paid back for helping them and the Rats are going to move. 10 of them stay behind and they fill the hole with trash. The people are exterminators and 8 rats survive while 2 don't. 1 of the rats who didn't survive went back to help the others. Mr. Ages, Brutus, and Mrs. Frisby assume this rat was Justin. Epilogue: The next day, the plow comes and Mrs. Frisby's home is safe. A couple of months later, they move to their summer home and Mrs. Frisby tells them the whole story about NIMH including their father.