Andre Norton 
Red Hart Magic [EPUB ebook] 

From the New York Times–bestselling Grand Master of Science Fiction: New stepsiblings Chris and Nan have time-traveling adventures in an old English inn. What is the magic of the Red Hart Inn, an exquisite model of an old English inn, that triggers three strange and exciting adventures back into earlier centuries for its two owners? Chris Fitton and his new stepsister Nan Mallory, both lonely and unhappy, must test their courage through three tumultuous periods of English history in this skillfully written time-warp fantasy. What they learn about themselves and each other enables them to live more fully in their own time. Red Hart Magic is the 6th book in the Magic Sequence, but you may enjoy reading the series in any order.