Another collection of stories about Emily Eyefinger who has an eye on the end of her finger. In the title story of this exciting new collection of Emily Eyefinger's adventures, Emily finds the bones of an ancient, extinct mouse. This mouse nicknamed 'The Mother of all Mice' by Professor Mousefinder was as big an elephant and terrified the cats of its day. But no sooner does Emily make her discovery than the so-called 'Devil Bones' go missing. Once again, Emily searches for a solution to an ever-deepening mystery.