If you look closely at Hyde, you will notice that above him floats aghast, but dominating, a residue of Jekyll, a kind of smoke ring, or halo, as if this black concentrated evil had fallen out of the remaining ring of good, but this ring of good still remains: Hyde still wants to change back to Jekyll. This is the significant point. It follows that Jekyll’s transformation implies a concentration of evil that already inhabited him rather than a complete metamorphosis. Jekyll is not pure good, and Hyde (Jekyll’s statement to the contrary) is not pure evil, for just as parts of the unacceptable Hyde dwell within acceptable Jekyll, so Hyde hovers a holo of Jekyll, horrified at his own worser half’s iniquity.