It appears that a ‘silent’ passenger has hitched a ride on the TARDIS, but you can only see him on the Doctor Who Glow-in-the-Dark Passenger T-Shirt after the lights go out.
The specialty ink on this cool t-shirt almost makes it seem like you have two completely different shirts. When the lights are on, you see the TARDIS soaring in front of a white background, but the action becomes visible after your plunged into darkness because a member of the Silence can be seen crouching on top of the police box. Fortunately, we can also see a silhouette of the Doctor and he seems to be aware of his stowaway. Perhaps if he gives the TARDIS a quick shake, the Silence will fall???
The Doctor Who Glow-in-the-Dark Passenger T-Shirt is available for $15 at shirt.woot.com.