the Ghost Tower
This tower sits like a teetering stack of broken bricks on Hush Island, jutting from the mouth of the Crowkut River, a thoroughfare that splits Swamphaven into northern and southern halves. City officials place Hush Island within the Statue district, though the island seems to reject the association, sitting bridgeless and silent while captains steer well clear of its shores. Nobody knows who built the tower, but everyone assumes magic was involved as the structure is infamous for swallowing anyone who dares explore it and never letting them back out. A few brave souls have set foot on the island itself and returned, but anyone who is seen entering the building is lost. For this reason, Swamphaven's courts have no death penalty; they simply sentence the most irredeemable criminals to enter the Ghost Tower.
"My uncle knew a man who went in on a dare when he was young and stupid. Turned around after three steps, practically fell out the door. Said he heard his mother singing a lullaby she used to sing when he was small. She'd been dead for fifteen years. He never went near the water again. Moved inland, far as he could get."
From the busy wharves of the Statue District, the Ghost Tower is easy to ignore. It hunches on Hush Island like a mistake, a smudge of gray against the fog, so still that the eye slides past it in search of more interesting things. Most residents of Swamphaven have learned not to look. Children are taught young: don't stare at the island, don't point, don't say its name after dark. From a distance, it could almost be an ordinary ruin, crumbling and forgotten. But there is something about its silhouette that resists dismissal, a wrongness in the angles, as though the tower was drawn by someone who understood the concept of architecture but not the rules.
"The courts say it's justice, sending the worst ones in. I say it's something else. I say the tower needs to be fed, and the city council knows it. The death penalty is just a way to keep it satisfied, maybe so it doesn't start reaching out for the rest of us."
The silence on the island is absolute. Not peaceful. The absence of sound presses against the ears like deep water. Words spoken aloud emerge muffled and thin, as though the air itself is unwilling to carry them. Most people who set foot on Hush Island do not linger. The few who have stayed long enough to study the tower up close report an increasing sense of urgency, a conviction that they are intruding, that they are being tolerated for now but that tolerance is not infinite.
"Don't look at it too long from the shore. It looks back. And once it knows your face, it starts calling."
Gameplay
The Ghost Tower serves as an ultimate consequence, a one-way door. NPCs facing execution might beg the party to help them escape before they are sent to the island. Alternatively, the party might be tasked with retrieving someone from within.
Any creature that comes within 500 feet of the island must make a saving throw or feel a powerful compulsion to turn back and cannot willingly move closer until the next dawn. On a success, they may proceed but suffer disadvantage on Wisdom rolls while on the island. Sound does not carry normally near the island. All creatures within 100 feet of the shore have disadvantage on hearing-related rolls.
The door is always unlocked. Opening it requires no roll, no magic, no effort. This is, perhaps, the most unsettling thing about it. Upon opening the door, each creature hears a voice calling from above. Someone they knew who has died or someone they have lost in another way, this is a psychic effect, manifesting a memory for the listener alone.
The interior of the tower is a shifting, non-Euclidean space. It is larger on the inside than the outside, and the layout will change between visits. Mapping is impossible; each room or landing leads to something different depending on when and how it is approached.
"You know why they call it Hush Island? Because the tower doesn't like noise. Shout too loud near the shore and the sound just... stops. Swallowed up. The island takes your words and keeps them. Some say if you press your ear to the tower walls, you can hear every sound it's ever stolen, all layered on top of each other. Every scream. Every prayer. Every 'help me.'"
Plot Hooks
- A condemned prisoner is the only person who knows the location of a valuable item, or vitally important magic item. The party must enter the tower and retrieve them before a certain amount of time passes.
- Someone the party cares about entered the tower voluntarily, seeking immortality or forbidden knowledge. Can they be convinced to leave? Do they even want to be saved?
- The party discovers evidence that the tower can be destroyed, but only from the inside. Someone must find a path to the roof and perform a ritual, knowing they will never return. Who volunteers?
- A thieves' guild uses the tower as a dead drop, leaving messages on the outside for contacts who retrieve them. The party needs information hidden there, but even stepping foot on the island carries risks.