A Traveller in Time

Penelope is sent to stay with her great-aunt in an old Derbyshire house where the Babingtons used to live where discovers she can slip in and out of time through the doors in the house and go back to the 1580s in the time of Elizabeth I where she unwittingly becomes involved in the doomed plot to free Mary Queen of Scots.

This well-loved book was first published in 1939 and has recently been republished.