Bell Swan Ω "Shell Bell"

"Yeah, actually, this stuff gets combed in," she points out a little comb attached to each package of dye, too small to effectively detangle but decent for incorporating a substance, "and I can't see the back of my head." She's smoothing out her hair and making a zig-zagging part down the middle with her fingernail. "If I hold the left half out of the way can you comb the dye into the right half and vice versa?"