An impossibly narrow field for a fund?

The huge bulk heaved and struggled to drive itself into the impossibly narrow crevice.

The limo driver suddenly turned out and eased through an impossibly narrow gap to make the corner.

Pulling on tiny cracks in the rock, forcing his boots into impossibly narrow wedges, he made steady progress up the wall.

So did the sight of the pilgrims far below her, a thin stream of ants it seemed, winding their way up an impossibly narrow road.

Parking, they crossed a kind of central square where hawkers abounded, edged down a side street that was impossibly narrow.

Again and again I flipped sideways, shooting through impossibly narrow gaps.

He was startled when a form unfolded from an impossibly narrow crevice.

Her white hand, cold, slightly damp, and impossibly narrow, touched mine as she took the tray from me.

From the kitchen, a low door revealed an impossibly narrow staircase that led down to the cold room.