1Observe. Walk each scene and notice the tells — a smear of clay, a bell-pull that rings nothing. You are Holmes's eyes; nothing counts until you have seen it.
2Connect. Open 🧵 The Index and draw the red thread between clues. Some links are true and some are tempting lies — the game will not tell you which. A theory you never build, you can never accuse.
3Conclude. Name the guilty only when your board supports it. And when you are wrong — you will be — there is no retry. An innocent hangs, and Watson whispers one word: Norbury. Being wrong is a branch, not a wall. Walk it.