"This is as far as I go", he says.

Yorleck has accompanied the party as a guide at Jathren's
recommendation.  Aged in his late forties, with greying hair and
beard, he claims to know all the trails and locations surrounding the
village, and has contacts within the scattered tribes of vordral in
the area.  'Many are suspicious of outsiders, especially kandar',
Yorleck said on more than one occasion, 'My presence means they won't
attack'

Yorleck has led them to the end of the line of towers, about twenty of
which have been visible on the horizon for some time now.  

"The place beyond the towers is haunted", he says, pointing to the
final tower on the hillside.  "Ancient kandar sorcery, same as that
which built them.  I go no further".

Duplar notices that the tops of all the towers are level, although the
heights vary with the rough terrain.  They're also equally spaced when
one assumes that every longer gap represents a long-fallen tower.  An
imaginary line linking the tops of all the towers would hit the
hillside just beyond the final tower.
--
Tim Hall, http://www.kalyr.com

"It's a fine line between stupid and clever"
 - Spinal Tap