Devoted fans of BBC's Sherlock might have to wait two whole years for the fourth season of the show to air. But the creators have thought up something that might help tide them over in the meantime.
A new app called The Network allows users to solve a series of exclusive cases that involve Sherlock himself (Benedict Cumberbatch) leaving voicemail messages with clues. The free app also includes exclusive videos.
See a trailer for it below.