The great detective continues to fascinate and evolve in a digital age.
This is a good first colourwork project with some nice finishing touches.
Yarn required is two 100g balls of Aran weight in the main colour and one in the contrast.
The gauge is not too important as the cushion will just be slightly smaller or larger; however if you knit to a very loose tension I would suggest going down a needle size to ensure the intasaria is neat.
The i-cord edging gives a professional finish and the i-cord buttons look good and won’t damage your sofa.
An extra touch would be to add 221b in contrast to the ‘brick’ surround.