The Evil Twin

I am the evil twin,

A mask I make of his skin,

His flesh I reside within,

His thoughts I cast to the wind.

I am the evil one,

I the Moon while he the Sun,

Many misdeeds I have done,

All in the name of fun.

I am his evil side,

His every action I subtly guide,

Like the Moon controlling the Earth's tide,

While away from the Sun I shall hide.

I am him,

The shadow of a light beam,

The silt at a lake's rim,

The colours of a diamond's gleam.