“ The old clock tower stands tall, but the bulk of the uppermost storey is crumbling and unsafe, with gaping cracks in the walls. The metal struts and girders supporting the great bronze bells are still intact, though, and the bells survive. The grotesque gargoyles and arabesques which decorated the original design have either fallen into the street (once or twice a year more bricks fall from the tower, prompting calls for its demolition) or have been defaced, but the main doors to the clock tower are still intact and show signs of being kept in working order. This is the home of The Captains, clad in raggedy clothes, with sooty faces, and perpetually runny noses. But behind each set of eyes is the look of a survivor. They live to stick together and make it through each day. Older than their years in many ways, the friendship they share with each other and Wims ghost keeps the core of a childs innocence and hope alive in each. But they are still very suspicious of outsiders. They are a group of street children who live in the clock tower. Some are orphans, some runaways, and some nomads who occasionally return to their homes. But they're all poor, dirty and perpetually hungry, as well as being wily, unscrupulous and mischievous in a fairly brutal way. Enough of them have suffered at the hands of adults for all of them to be wary of any grown-ups, particularly ones who ask too many questions, although with hard work and a lot of food it might be possible to win the confidence or even the trust of a few of them.”
“ Sessiliths (name based on the word sessile) are gargoyle-type creatures which are stationary, attached to the stone of whichever foundation they are bound to. Though they can move their extremities and limbs they are unable to move away from their particular perch. In lieu of swooping down and attacking like their mobile cousins the gargoyles proper, sessiliths are equipped with their own brand of mischief. The creatures are all able to verbalize and thus usually hurl vile insults and curses upon passersby. The cumulative effects of dozens of sessiliths cursing, screaming, and speaking in tongues, can have an effect of temporary confusion (or even discord) in those forced to listen to the shrieking stone gremlins.
Additionally, most possess the ability to 'spout' or spit forth various undesirable projections, such as tar, boiling water, or even acid. While they can usually be avoided easily enough or even destroyed (their 'bodies' feature the same defenses as gargoyles), sessiliths are usually placed in such a way as to hinder all trespassers and interlopers, narrow corridors, claustrophobic tunnels and other related 'gauntlets', where they cannot be easily avoided. Like gargoyles, sessiliths come in all sorts of grotesque shapes and sizes, though they tend to resemble tiny horned devils, demonic amphibians, or simply distorted faces and heads, more often than not.”
“ With a huge number of sacrificial victims, another realm long ago secretly bound a Prince of the land spirits, Iorstonn by name, thus ensuring the fertility, and improving the magical defences, of their realm. But binding that Prince to one spot has disrupted the weather and magical patterns (ley lines?) over half the continent. Things have become bad enough that a coalition has been formed to rectify the situation, once divinations have established the cause.
Your party is one of the teams assembled to do the rectification: find the binding object and steal it ('so that we can destroy it here in our realm, of course'...*) or destroy it over there. Presumably the Prince will be grateful to his rescuers and angry at the binders, but with a greater spirit like Iorstonn one can never be sure: such beings are 'tricksy'.
* Of course, the rulers of our realm might want to control Iorstonn for their own ends...”