Vanishing Act by A.R.C.

I wish

You were

There to see it

One minute

I'm talking to him

The next

I turn around

He's gone

Mysterious

Man of few words

A Sherlock-type

Good with riddles

And dissecting

Crime scenes

Could easily

Blend in the shadows

But he's no small fry either

Muscular and strong

Definitely keeps in shape

For such a big guy

How does he

Silence his footsteps 

As if he's a ninja

Of the night?