Part of a series which integrates the text with pictures. Uncle Ugstein wasn't an average caveman, but even so it was odd that he should have the idea for a vacuum cleaner when, at that precise moment, 620 000 years in the future, young Doreen Pegg was building her time travel machine.
Genre: Children's Fiction
Genre: Children's Fiction
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Used availability for Bob Wilson's Stone the Crows, It's a Vacuum Cleaner