The Blind Spot (Paperback) (ISBN-13: 9798269094717)

The rule is simple: after using the atropine, do not look at it head-on.

It lives in the periphery-watching, waiting. You'll feel it before you see it. A flicker from the corner of your eye. A silver thread at the optic nerve.

But be careful what you wish for; some things are meant to remain unseen.

And once the atropine wears off, so does the deal.