7.8 Summary

The story at a glance

In Idaville, Chief Brown’s clever son, Encyclopedia Brown, helps solve a five-year-old jewellery robbery worth about a million dollars. The suspect, ex-convict Tim Nolan, dies of a stroke, leaving behind a strange message: four odd words with a blank fifth. Encyclopedia notices that each word is made from the letters of a day of the week after removing D, A and Y. The days run in order, so the missing fifth word comes from Friday — whose remaining letters, F, R, I, spell “Fir.” The clue points to a fir tree in Nolan’s nursery, where the stolen jewels are found buried.

Key points to remember

• The chapter is a detective story from the Encyclopedia Brown series by Donald J. Sobol.
• The mystery is a five-year-old jewellery robbery; the suspect is Tim Nolan.
• Nolan’s message hides days of the week with the letters D, A, Y removed.
• The fifth word is from Friday → “Fir.”
• The jewels are found buried under a fir tree in Nolan’s nursery.

Theme and central idea

The central theme is the power of observation and logical reasoning. The story shows that careful attention to detail and the search for a hidden pattern can solve problems that baffle everyone else — and that the cleverest solutions come from thinking, not guessing.

Moral

Look for the pattern behind the puzzle. Careful observation and step-by-step reasoning can unlock answers that seem impossible at first.

Why the title fits

The whole mystery turns on a single missing word — the fifth word of Nolan’s message. Finding that word (“Fir,” from Friday) is the key that solves the entire case. The title The Case of the Fifth Word names exactly the puzzle the detective must crack.

In one line Four strange words, one missing fifth, and a boy detective who sees the days of the week hidden inside them — leading straight to a fir tree and a fortune in jewels.