How do you create e dark value with hatching?

To create a dark value with hatching, begin by layering closely spaced parallel lines in the desired area. Gradually increase the density and overlap of the lines, using more strokes to intensify the darkness. You can also vary the direction of the hatching or introduce cross-hatching, where lines intersect at different angles, to enhance the depth and richness of the value. Adjusting the pressure on your drawing instrument can further refine the darkness achieved.