Discover what happened before . . . What did Osgood do the morning of the Day of the Doctor?What happened to Tegan before Arc of Infinity, and why does it involve strange sentient lights in the Australia outback?What was the Tenth Doctor doing in a hall of mirrors, right before Planet of the Dead?Answers to all these questions lie in an incredible collection of new Doctor Who short stories that give a glimpse into the moments just before we saw the Doctor step on screen. From Skaro to Apalapucia, from a shop front drained of colour to Rassilon's tomb, join a host of incredible adventures across the universe with Doctors, companions, friends and foes.