The name of Troy has often been associated with mazes and labyrinths. This afghan is based on a particular Wall of Troy which used to exist in in Holderness, Humberside. It was unusual because it was a twelve-sided structure . It measured about 40 feet (12 metres) in diameter. It is known to have been in existence by 1815 and destroyed some time afterwards. It is very similar to Chartres Cathdral Maze.
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The background is made first, working outwards from the centre. The walls are added afterwards. The background is a 12-sided shape of treble crochet (UK definition). The walls are added by surface crochet. A thick textured yarn works best for this.
This can be made using any yarn and hook. The yarn chosen will determine the finished size. The instructions contain information for modifying the size in other ways. Instructions for Chartres Cathedral Maze are included in the same pattern booklet.
I made Chartres Cathedral Maze before I made this. A crochet circle, worked in trebles (UK definition) automatically forms a twelve-sided shape, if it is not adjusted. I contrived to make it into a circle, as the maze at Chartres is circular. I then discovered that the Holderness maze was a twelve-sided shape so I made this second version, letting the crochet do what it does naturally.