Whatever it is you saw, you must have forgotten. You are staring intently at no pockets, which seems to be staring back into you. Your concentration is broken by the sight of a parasitic psychic leech falling from your head, dead. You don't know how it got here, but whatever "no pockets" is, it has managed to completely capture your thoughts while you were staring at it.
The world around you speeds up. About a quarter of a second after you adjust your pocketwatch, there is a ripple in the air. A massive, leechlike creature forces its way into your field of personal time. Before you've time to react, it burrows into your skull, consuming your cerebrospinal fluids.