Level 3
Cosmo Mars: Teenage Detective
Author Alex Woolf
Mystery and Thriller
Matt just can’t understand why Steffi, his sister, so loves reading those unbelievable stories about Cosmo Mars the teenage detective. Then, while in their local library, they discover a magical book, and find themselves in a Cosmo Mars story. Will Cosmo, Matt and Steffi solve the mystery of the stolen diamond pendant?
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5 stars
54%
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4 stars
28%
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3 stars
11%
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2 stars
3%
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1 star
4%
Overall rating 4.2 out of 5
699 readers rated this book
Chapters
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Chapter 1 A Visit to Crag Island
Matt trailed after his sister as she headed into the library. “It won’t take long,” Steffi said, heading over to one of the nearby bookshelves. “I just need a new book to read.” “Okay,” huffed M...
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Chapter 2 A Grave Mystery
“Crikey! What was that?” hissed Cosmo when they heard the smashing glass. “No idea,” whispered Matt. “But look out there.” He pointed through the window towards the eerie green glow coming from ...
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Chapter 3 A Woolly Clue
For the second night in a row, Cosmo, Steffi and Matt sneaked out of the house. They were careful to keep their distance as they followed the figure along the path that led to the cliff. “Can you...
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Chapter 4 A Distressing Letter
Cosmo, Matt and Steffi turned to each other in panic as the big man approached. What should they do? “The door!” cried Cosmo, dashing towards it. As he opened it, the dreadful groaning sound grew...
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Chapter 5 The Trolley Run
Steffi turned to speak to Withers about writing the confession. No matter what Cosmo said, she still thought it safest to do as the thief asked – anything to keep Matt from harm. But before she c...