The Second Clue

Oh, think you're clever do you? That was just a test clue, this next one is far harder.

2. We've a new paperback coming soon that's not for Kidds. Once you find it, why not investigate the calling card of London's best Victorian Detective? I'm sure I left a link lying around there somewhere.

Delighted by the treasure hunt? Let us know! #CanongateClues