top of page

Carole Marsh Mystery Series
Around the World in 80 Mysteries

The Mystery on the Great Barrier Reef (Australia)

It’s a trip "Down Under" for Christina, 10, Grant, 7, and their mystery-writing grandmother Mimi! Lots of surprises and mysterious activities unfold as the group travels through the Outback, Queensland, and finally to the Great Barrier Reef. During a glass-bottom boat ride, they discover more than coral and fish under the water–scuba divers and flesh-tearing moray eel lurk beneath their boat! They shudder at the eerie screech of the Tasmanian devil and brave the awesome Australian Outback (and Aborigines!) at night. Watch and wonder as Grant ends up in the Camel Cup camel race – will he make it to the finish line? Don’t miss a moment of excitement in Christina and Grant’s Australian adventure! 

LOOK what's in this mystery - people, places, history, and more! 
Places: Alice Springs • Uluru-Kata Tjuta National Park • Uluru, or Ayers Rock • Kata Tjuta, or The Olgas • The Great Barrier Reef, off the coast of Queensland • Sydney Opera House • Woolloomooloo, Sydney, Australia • Sails in the Desert Hotel in the Yulara Resort • Sydney Harbor Bridge 

Order the Book

The Mystery on the Great Barrier Reef (Australia)

$7.99

Anchor Order

Read the Book

Anchor Read

Read the first 3 chapters of the book for FREE. 

We hope you like it!

Print Fun Activities

Fact or Fiction Quiz

Book Club Discussion

Book Club Activities

Anchor Print
Anchor Review

Write Your Review

So what did you think of the book? 

We and your fellow Clubbers want to know!

© 2026 Gallopade & Carole Marsh. All rights reserved.

bottom of page