Written by the author of CBBC's Scream Street TV series!Sarah is creating her latest invention for the "Big Boffin" science competition.

This time she's definitely going to win! But when the day comes, she accidentally open a time portal to prehistoric Earth, and now there's a T-Rex on the loose in the school... Tommy Donbavand's Funny Shorts is a series of 4,000-word colour illustrated, chapter-based readers, which are perfect for bridging the gap between first chapter books and independent reading. Published by Franklin Watts EDGE, using off-white paper and a font recommended by the British Dyslexia Association.