Answer :

Answer:

The culprit in Promise Boys is Dr. Dennis Dentist Rowe. Throughout the story, the boys suspect Omar, Mrs. Hall, and even themselves, but Dr. Rowe is the mastermind behind Principal Moore's disappearance.

Explanation:

Dr. Rowe's Motive:

Dr. Rowe is driven by revenge. Principal Moore had been investigating Dr. Rowe's illegal dental practices on students from low-income families. Fearing exposure and potential legal trouble, Dr. Rowe decided to eliminate Principal Moore.

Clues Pointing to Dr. Rowe (Spoilers):

Fake Illness: Dr. Rowe feigns sickness on the day Principal Moore disappears, creating an alibi for himself.

Missing Records: The dental records for the students Dr. Rowe mistreated vanish around the same time as Principal Moore.

Suspicious Behavior: Dr. Rowe acts nervous and avoids eye contact when questioned about Principal Moore.

Flashbacks: The story reveals flashbacks where Dr. Rowe expresses frustration and resentment towards Principal Moore for investigating him.

Red Herrings:

Omar: Omar's initial rebelliousness makes him a suspect, but the story clarifies his troubled behavior stems from personal issues, not a connection to the crime.

Mrs. Hall: While Mrs. Hall might have harbored some frustration with Principal Moore, the book establishes she wouldn't resort to such drastic measures.