title: Mystery in the Sand (The Boxcar Children Mysteries #16)
author:  Gertrude Chandler Warner 
description: Living in a seaside mobile home, the Aldens unravel the secret of two secluded women.
zlib_text: ![](Images/image00063.jpeg)
  
  **Mystery in the Sand**
  
   **GERTRUDE CHANDLER WARNER**  
   **Illustrated by David Cunningham**
  
   **ALBERT WHITMAN & Company, Chicago**
  
   **Contents**
  
  CHAPTER
  
  1 Sea and Sand
  
  2 Benny Hunts for Treasure
  
  3 Midnight Mystery
  
  4 Are Finders Keepers?
  
  5 A Hundred Cats!
  
  6 Benny to the Rescue
  
  7 Violet’s Adventure
  
  8 An Invitation
  
  9 Answers at Last
  
  10 New Trick for an Old Dog
  
  About the Author
  
  ![](Images/image00060.jpeg)
  
   **CHAPTER** **1**
  
   _ **Sea and Sand**_
  
   **J** essie Alden stood at the door. “Oh, what a beautiful morning!” she said
  on that hot July day.
  
  “You can say that again, Jessie,” added Benny Alden. He looked out at the blue
  ocean and white sand. There was not a cloud in the sky.
  
  Violet and Henry came to the door and looked out, too. The sea gulls were
  sailing around a fishing boat, making a great noise.
  
  “This is the funniest thing,” said Benny. “Here we are at Aunt Jane and Uncle
  Andy’s new trailer at the beach. A day or so ago we were at ho