Discover the early history of Britain in Man Meets Metal. TreeTops inFact is an exciting non-fiction series for children aged 711. Its range of subjects and careful levelling make it easy to select books that children will love.Discover the early history of Britain in Man Meets Metal. TreeTops inFact is an exciting non-fiction series for children aged 711. Its range of subjects and careful levelling make it easy to select books that children will love.