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171 pages : illustrations Summary: Big bully Zachary Black has stolen the awesome comic that Sid has spent hours drawing. Zachary sets Sid a challenge - beat him in an arm wrestle and the comic is his once again. Sid's evil-genius neighbour, The Mighty Professor Skeletron, calculates Sid's chance of victory as one in ten, so they create a Time Rescrambler in order for Sid to take the challenge ten times... and eventually win! But catastrophe strikes when the rewind button jams and the boys, along with Sid's little sister, Wendy, are transported back to the time of the Mongol Empire. To make matters worse, the device falls into the hands of a fearsome warrior How to 2