Changes

The Gibbelins eat, as is well known, nothing less good than man. Their evil tower is joined to Terra Cognita, to the lands we know, by a bridge.

\setupnarrowerdefinenarrower[asym][left=1cm,right=3cm]

\startnarrowerstartasym (default, middle=0.5cm) Their hoard is beyond reason; avarice has no use for it; they have a separate cellar for emeralds and a separate cellar for sapphires; they have filled a hole with gold and dig it up when they need it. \stopnarrower  \startnarrower[left,right] (1cm left, 3cm right) And the only use that is known for their ridiculous wealth is to attract to their larder a continual supply of food.\stopnarrower \setupnarrower[middle=1cm]\startnarrower (1cm middle) In times of famine they have even been known to scatter rubies abroad, a little trail of them to some city of Man, and sure enough their larders would soon be full again.\stopnarrowerstopasym