!       The UPPER/NORTH CANYON.
!
!       Defined in DM4 §23
Object  Canyon_N "Upper End of Canyon"
  with  description
            "The higher, broader northern end of the canyon rises only to an
             uneven wall of volcanic karst.",
        s_to Junction,
        d_to Junction,
  has   light;

!       Defined in DM4 §15, modified in Exercise 24 and §23
Object  -> huge_ball "huge pumice-stone ball"
  with  name 'huge' 'pumice' 'pumice-stone' 'stone' 'ball',
        initial
            "A huge pumice-stone ball rests here, eight feet wide.",
        description
            "A good eight feet across, though fairly lightweight.",
        before [;
            PushDir:
                if (location == Junction && second == ne_obj)
                    "The Shrine entrance is far less than eight feet wide.";
                AllowPushDir();
                rtrue;
            Pull, Push, Turn:
                "It wouldn't be so very hard to get rolling.";
            Take, Remove:
                "There's a lot of stone in an eight-foot sphere.";
            ],
        after [;
            PushDir:
                if (second == n_obj) "You strain to push the ball uphill.";
                if (second == u_obj) <<PushDir self n_obj>>;
                if (second == s_obj) "The ball is hard to stop once underway.";
                if (second == d_obj) <<PushDir self s_obj>>;
            ],
  has   static;

! ---------------------------------------------------------------------------- !
!       The XIBALBÁ/JUNCTION.

!       Defined in DM4 §23
Object  Junction "Xibalb@'a"
  with  description
            "Fifty metres beneath rainforest, and the sound of water is
             everywhere: these deep, eroded limestone caves extend like
             taproots. A slither northeast by a broad collapsed column of
             ice-covered rock leads back to the Shrine, while a kind of canyon
             floor extends uphill to the north and downwards to south,
             pale white like shark's teeth in the diffused light from the
             sodium lamp above.",
        ne_to Shrine,
        n_to Canyon_N,
        u_to Canyon_N,
        s_to Canyon_S,
        d_to Canyon_S,
 has    light;

!       Defined in DM4 §23
Treasure -> stela "stela"
  with  name 'stela' 'boundary' 'stone' 'marker',
        initial
            "A modest-sized stela, or boundary stone, rests on a ledge
             at head height.",
        description
            "The carvings appear to warn that the boundary of Xibalb@'a,
             Place of Fright, is near. The Bird glyph is prominent.";

! ---------------------------------------------------------------------------- !