protected so that they can download the pictures to their phone. In one of the photos, they see Mr. Pickett in his nightshirt going toward the river to escape.

I swiped through more pictures until I got back to September 9th, and there, yes, in the shade of green I could see the back of a stocky man wearing a striped night-shirt. (Chapter 3)

The picture of Mr. Pickett helped them understand how he had escaped, and that gave them a good idea of the direction he went.

The Notes from Pickett’s Phone

The notes that Noah gives to Aza because he wants to find out what happened to his father are another clue. Davis doesn’t want Aza to keep up the search, but Noah, his younger brother, asks her to keep looking and gives her the notes he got off of his dad's phone. Of the notes, one includes the phrase “The Jogger’s Mouth” which is essential because it is eventually what helps Aza and Daisy realize that the jogger's mouth is the entrance to the tunnel at Pogue’s Run. She tells Davis, and he calls in an anonymous tip to the police who find his father’s body in the tunnel system.

Much of the novel’s plot involves the search for Davis Pickett Sr., a billionaire who has gone missing. Ava and Daisy get involved in the search because Daisy wants to claim the reward. The plot gets more complicated, however, when his son, Davis Jr., provides the equivalent amount of the reward money to dissuade the girls from searching for his father.

Towards the end, Mr. Pickett’s body is found in a large sewage pipe or tunnel. The girls notice there is a strong odor, which leads to the discovery. The author leaves the exact cause of Pickett’s death ambiguous, however; he offers an article saying the cause was “exposure.” A bizarre clause in the will stipulated two different legacies depending on whether the body was found or not, one with the money going to the children and the other having it go to a lizard. This leads to a decision by Davis Jr. about revealing the body’s location despite the ensuing financial loss.