Alrighty, sounds good. I'll incorporate that into my next post as a bit of an epiphany he has. xD
And yeah, you would be correct. During the events of The Darkest Faerie, the Bogshot Swamp was where the Council of Altador (before recorded history) banished the Kastraliss. It remained dormant in its statue form until the Darkest Faerie's magic spread to the region and restored it to life. The Kastraliss, with her power, was the cause of the plague, and was guarding the only plant that could be used to cure it, the Bogberries (which needed to be made into a potion by the apothecary). So it was actually Tormund and Roberta who saved the day by defeating the Kastraliss, who in turn returned into his statue form. They obtained the Bog Berries and helped to cure the Squamata Plague.
Though this does raise an interesting question: How far ahead of "Neopets canon" does this take place? Obviously, it can't be a HUGE amount of time if Skarl and Hagan are still in command (unless Skeiths just live for a ridiculously long time since lifespans are never mentioned on Neopets for obvious reasons xD).