The Knucker of LyminsterTwo hours to the flood

The wolfsbane goes into the pie under the crust, and while you did it the water in the dyke came up over the first rung of the sluice ladder.

Step Two: the brooks

Flat brook meadows cut by winding water-filled dykes under a pale evening sky, a heron standing in a ditch, a flint church tower on the left and a castle on a wooded hill in the distance

The map is the knight's, drawn this morning from the church tower with the sexton at his elbow: twelve brook fields between the church and the river, the dyke running through the middle row from the Hole to the sluice, the castle away to the north and the river down the east side. Then he walked the dyke, and wrote three things on the back.

On the back of the map, in the knight's hand

Tap the field where it lies, and go there.

The dotted line is the dyke.

This step, in words

The plan is a grid of twelve fields, four across and three down, with north at the top. Top row, west to east: Mill Brook, Tithe Mead, Rope Walk, Ferry Piece. Middle row: Church Field, Long Withies, Sallow Brook, Sluice Meadow; the dyke runs through all four of these, from the Knucker Hole at the west end to the sluice gates at the river on the east. Bottom row: Pound Mead, Cudlow Piece, Heron Marsh, Wharf Brooks. The mill stands in the north-west corner in Mill Brook, the church is west of Church Field, the river runs down the east side, and the castle is off the top of the map to the north. Every field is a button, named, in that arrangement. Tap one and then Go there.

Go down to the bank.