The Man Who Bridged the Mist

Novella.

Nebula Award for best novella of 2011.
Hugo Award for best novella of 2011.
Sturgeon Award finalist for best short SF of 2011 (Johnson is a juror, thus withdrew it from contention).
Locus Award finalist for best novella of 2011.

Kit came to Nearside with two trunks and an oiled-cloth folio full of plans...