Balfour and Meriwether in The Incident of the Harrowmoor Dogs 

When a private envoy of the queen and member of Lord Carmichael's discreet service goes missing, Balfour and Meriwether are asked to look into the affair. They will find a labyrinth of dreams, horrors risen from hell, prophecy, sexual perversion, and an abandoned farmhouse on the moors outside Harrowmoor Sanitarium. The earth itself will bare its secrets and the Empire itself will tremble in the face of the hidden dangers they discover, but the greatest peril is the one they have brought with them.

Balfour and Meriwether in the Incident of the Harrowmoor Dogs is the first novella length work in the Balfour and Meriwether stories by Hugo, Nebula, and World Fantasy Award nominated author Daniel Abraham.