- Named after the German verb irren, from which irrlicht (the German name for will-o'-the-wisps) is derived. These creatures are often encountered in the northern swamps of Irren.
- The 'surprisingly organised frogs and toads' are controlled by HHH, a Sprite courtier who attempted to place the Boastful Prince's Scourge on Lord Lutrian; the curse backfired, affecting the caster instead. He is Tainted by the Verdant Mother, who is directing him to conquer Willow Creek, in order to access the Willow Creek Ruin beneath.
- Does the Fey Vampire Cult still have a presence and influence here, even after Lady Agra was killed?