Written by George Mann. Art by Emma Vieceli. Cover by Rachael Stott and HiFi. 1932. Briarwood House. As a jazz party preoccupies the English upper-crust, the Doctor and Josie discover a terrifying secret below stairs – the servants are beginning to sprout branches! When the forests of Briarwood besiege the house, the Doctor must uncover an ancient ritual and the truth behind an interdimensional sacrifice!