title: The Empty Envelope (A to Z Mysteries)
author:  Ron Roy 
description: elope...Dink keeps getting envelopes in the mail addressed to "D. Duncan." But the letters inside all start with "Dear Doris" and don't make any sense! Josh and Ruth Rose think someone's playing a trick on Dink. But Dink is sure there's more to it than that, especially after Doris herself shows up and demands her letters!
zlib_text: Mystery14 – Mystery of the Strange Messages, The – Blyton, Enid. 
  Mr. Goon is Angry. 
   
  Mr. Goon, the village policeman, was in a very bad temper. He sat at his desk, and stared at 
  three pieces of 
  paper there, spread out before him. Beside them were three cheap envelopes. 
  On each sheet of paper separate words were pasted in uneven lines. "They're all words cut 
  out of some 
  newspaper," said Mr. Goon. "So's the writer's handwriting wouldn't give him away, I suppose! 
  And what 
  nonsense they make—look at this one now—'TURN HIM OUT OF THE IVIES!' What does that 
  mean, 
  I'd like to know. And this one—'ASK. SMITH WHAT HIS REAL NAME IS.' Who's Smith?" 
  He stared at the last piece of paper. "CALL YOURSELF 
  A POLICEMAN? BETTER GO AND SEE SMITH." 
  "Gah!" said Mr. Goon. "Better put them all into the waste-paper basket!" He took one of the 
  envelopes and 
  looked at it. It was a very cheap one, square in shape, and on each one was pasted two words 
  only. 
  Mr. goon. 
  Each word was pasted separat