The alternative TAB title :-)

…or maybe a new name for Mark Gatiss fandom?

The subline says:  ubiquitous · undetected • unstoppable

If the Sisterhood in TAB could wear T-shirts with messages on them,
it could be this one! 🙂

Our way of life is under threat from an invisible enemy. One that hovers at our elbow, on a daily basis. These enemies are everywhere… undetected… and unstoppable. –Mycroft Holmes

Choose your own colors of the design at Spreadshirt

Or go to Red Bubble for ready-made versions for bright and dark background:

Remember, there are more products than only T-shirts.
Spreadshirt has also buttons, while Redbubble has stickers and stationery.

PS: Now you can add this disclaimer on the back (or on the front if you like) of the Furies T-shirt at Spreadshirt. If you like simple solutions, there is a ready made one with the writing in white.