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Mystery at the Washington Monument (Capital Mysteries #8)
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Mystery at the Washington Monument (Capital Mysteries #8)

4.2  ·  Rating details ·  275 Ratings  ·  19 Reviews
Late at night KC and Marshall are sleeping out on the White House lawn when they see suspicious lights flickering at the top of the Washington Monument. If that's not strange enough, the next day a monkey is found inside the building! KC and Marshall set off on a wild adventure to solve a 100-year-old mystery that involves a jewel thief, long-lost diamonds, and one of Wash ...more
Paperback, 96 pages
Published July 16th 2009 by Random House Books for Young Readers (first published May 1st 2007)
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Aug 17, 2010 rated it liked it
Recommends it for: parents reading with their children
This is an interesting mystery in the Capital Mysteries series, one that is far less dangerous and creepy than the others so far.

KC and Marshall visit the Washington Monument and the National Zoo, adding a few more places to our to-see list now that we live in the area. Our girls have really enjoyed the books in this series.
Jul 13, 2010 rated it liked it
KC and Marshall are friends; one night, while sleeping on the lawn of the White House (the US President is KC's new stepfather), they see twinkling lights in the top level of the Washington Monument. They decided to investigate and then solve the mystery!
Feb 20, 2008 rated it it was amazing
Shelves: children-sfic
This story, part of Ron Roy's Capital Mysteries series is great! I loved reading about different places in D.C. and working to solve a mystery in the area was really fun!

The story takes off after KC and Marshall spot weird colored lights atop the Washington Monument while camping out on the White House lawn. The next day, they discover a monkey in the monument during a tour. KC and Marshall set off on a wild adventure to solve a 100-year-old mystery that involves a jewel thief, long-lost diamond
Feb 20, 2015 rated it really liked it
I liked it. They find a monkey in the Washington monument and the owner has trained the monkey whenever it sees the word washington it will punch at the o. They find the monkey at the monument and they find a hole in the O and at the end they have a party to see who owns the monkey. And the monkey goes to a lady that sells maps and books about Washington.
Sonia and Julia
Jan 09, 2013 rated it it was amazing
Mystery at the Washington Monument by Ron Roy is a great mystery that leaves you thinking about the suspect.It also has cool facts I did not know about.I recommend this book to readers who like mysteries,facts, and politics.
Wakako Sugawara
Nov 07, 2011 rated it really liked it
How big problems!! I think this series' mysteries almost of all are serious problems. However,
J PBK R Series: Capital Mysteries Facts are woven into the story.
Mar 11, 2016 added it
Shelves: emmas-books-2016
Finished 3/11/16
Jocelyn Montalvo Cullum
Sep 04, 2016 marked it as to-read
I registered a book at!
Oct 10, 2011 rated it it was amazing
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Full name: Wallace Ronald Roy
Most known for the children's mystery series "A-Z Mysteries" and "Calendar Mysteries"
More about Ron Roy...

Other Books in the Series

Capital Mysteries (1 - 10 of 14 books)
  • Who Cloned the President? (Capital Mysteries #1)
  • Kidnapped at the Capital (Capital Mysteries #2)
  • The Skeleton in the Smithsonian (Capital Mysteries #3)
  • A Spy in the White House (Capital Mysteries #4)
  • Who Broke Lincoln's Thumb? (Capital Mysteries, #5)
  • Fireworks at the FBI (Capital Mysteries #6)
  • Trouble at the Treasury (Capital Mysteries #7)
  • A Thief at the National Zoo (Capital Mysteries #9)
  • The Election-Day Disaster (Capital Mysteries #10)
  • The Secret at Jefferson's Mansion (Capital Mysteries, #11)