Watson, the dry rot has compromised the floorboards. Do not stand on what is visibly collapsing.
Watson, a crumbling chimney demands we inspect the cellar's masonry first. Reconstruct from the very bottom.
Lock the study door, Watson. When contagion spreads through London, isolation is the only logical defense.
Watson, discard your outdated maps. To solve this, we must look beyond our usual parish boundaries.
Step lightly, Watson. The fog conceals a sheer drop, and one misstep into the Thames is fatal.
Deploy the Baker Street Irregulars, Watson. A network of eyes achieves what one man cannot.
The storm has cleared the smog, Watson. Now we can see the city with perfect clarity.