"You know exactly what I'm talking about," Charles said menacingly.  He began to shine his flashlight all around the small underground room as if looking for something.  "I happen to know that there's a hidden stash of gold down here.  Just because you two are rich, doesn't mean you can take it from me.  You don't need it, anyway.  And I'm not going to let two dumb, rich girls stand in the way of what I need."

"For your information," Trixie began, "I'm not rich, and..."

Honey, who had been listening quietly, suddenly stood up.  She interrupted Trixie and started yelling at Charles.  "You can't talk to us that way," she snapped.  Trixie was surprised at Honey.  She'd hardly ever seen her get angry.  "It's not your fault that you're poor, and it's not my fault that my parents have money.  You have no right to be so nasty.  Besides, your dumb treasure couldn't be down here, because this isn't a cave - it's a cellar.  Look!"

Grabbing Trixie's flashlight out of her hand, Honey directed the beam at the section of wall Trixie had scraped clean earlier.

"See?  Nice square building stones - a cellar!"

There was a moment of silence.  Then, to both girls' amazement, Charles's face crumpled.  He began to cry.

The Indian Burial Ground Mystery (p. 145-147)

Title :
Trixie Belden and the Indian Burial Ground Mystery 

Author :
Kathryn Kenny
The ghost writer of this book is unknown

First Published :
1985

Chapter Titles :
1.  The Archaeologist
2.  A Change of Plans
3.  The Dig
4.  Suspicions
5.  Treasure Talk
6.  A Mysterious Accident 
7.  The Stolen Clue
8.  More Information
9.  The Ghost
10. In the Cave
11. Trapped!
12. A Surprise Secret
13. The Real Treasure

Setting :
Sleepyside, New York

Synopsis :
Trixie and Honey are excited by the opportunity to be involved in an archaeological dig on the Wheeler's game preserve.  Trixie takes an immediate dislike to Charlie, a graduate student leading the dig and overhears his plans to look for buried treasure.  However, Brian wants nothing to do with her theories and the remaining Bob-Whites investigate without him.  Trixie, Honey and Di are scared by a ghost while the Manor House is robbed, and Trixie tries to tie Charlie to the robbery but her theories become more far-fetched.  Trixie and Honey find themselves trapped in an old cellar and at the mercy of Charlie, but their enemy becomes their saviour and they put together a plan to catch the real criminal.

Characters : 
Trixie Belden
Honey Wheeler - Trixie's best friend
Brian Belden - Trixie's eldest brother
Mart Belden - Trixie's "almost twin" brother
Diana Lynch - a Bob-White and neighbour
Dan Mangan - a Bob-White and Regan's nephew
Helen Belden - Trixie's mother
Peter Belden - Trixie's father
Bobby Belden - Trixie's six year old brother
Miss Trask - Honey's governess
Regan - the Wheeler's groom
Mr Wheeler - Honey's father
Mrs Wheeler - Honey's mother
Professor Victor Conroy - an archaeologist
Charles Miller - graduate student
Harry Kemp - associate of Prof. Conroy's
Mrs Beales - director of Candy Stripers
Jake Hanson - guard at the Historical Society
Mrs Field - librarian
Brom Vanderheidenbeck - A whiskered, old man who lives in a small cottage in the Wheeler's game preserve.
Sergeant Molinson - head of the Sleepyside police

Villains :
Professor Conroy and Harry Kemp, who steal from rich mansions to finance an expedition to discover the lost city of Atlantis.

Points of Interest:
It is the beginning of summer and the Bob-Whites are looking for work over the summer, although it seems to be unpaid.

Jim is not in this book.  According to Honey, he is working at a summer camp to gain experience for his school (p. 25).

Helen refers to Trixie as Beatrix (p. 24) for the first time ever, and later in the book calls her darling (p. 127).

Trixie's favourite horse is apparently Mrs Wheeler's horse, Lady and Honey had her own horse but often rode Susie because she was so gentle (p. 96).

Reddy goes missing again!  This seems to be the most popular plot device for a Trixie Belden story (p. 125).

And there is more out of character behaviour for Honey, who snaps and yells at Charles when he calls her rich (p. 145).