Yes, there is a way to kill Prokroustes. If your intelligence or wisdom is at least 3, and you sleep at Prokroustes' inn, you will be more cautious and wind up killing him. See the text dump below.
Here is a text dump from the scene:
"
//START
prokroustesChop = "Prokoustes offers you some simple food. When you are finished with the meal, you follow
the man upstairs. His inn is sparsely furnished and small, but the second floor includes
a guest room for weary travellers like yourself.";
//SUCCESS & LIFE
pC1s = "After leading you to your room, Prokroustes exchanges a few simple pleasantries
and shows himself out. As he walks back down the stairs, you make yourself comfortable and start
thinking about how the people of Athens will receive you.
Before you turn in for the night, though, you jam the door shut. Whether it's a result of
wisdom or intelligence, you recognise the inherent danger in falling asleep in a stranger's home.
Custom requires that travellers be treated well, but bandits only fear the gods at the moment
of their punishment.
After testing the door a couple of times, you hop into bed and call it a night. ";
pc1s1 = "You dream about Troizen, and you dream about the countless miles of road you've trudged
over since leaving your birthplace. You don't have long to appreciate the dream, though.
You are awoken by a sound coming from the door.
Someone is on the other side trying to force his way in. Thankfully, the door is jammed with a
piece of wood that cannot be reached from outside. It's not clear who's on the other side,
but you didn't see anyone else living in the house other than Prokroustes.
Hopping out of bed quietly, you slide over to the door and remove the wooden piece.
You then crouch in position, waiting to catch your opponent unawares. ";
pc1s2 = "Within moments, another attempt is made to open the door. This time, it immediately swings
open, and you see Prokroustes step in. He creeps into the room towards your bed, dragging a large,
long-handled axe behind him.
At first, you're inclined to grab him and interrogate him, but then you see him lift the axe up
above his head as if to strike at the bed. It's unmistakeable: the man is here to kill you.
He never gets the chance to take a swing; you immediately run him through from behind. He gasps in
agony as you twist the blade, and then collapses face down onto the bed. You grab his axe off the
floor and give it a swing for good measure, implanting it right into his back. It severs his spine
and stains the sheets with gore.
It seems you will never be safe until you complete your journey. As the sun rises, you grab your belongings
and hurry down the road to Athens.
";
//FAILURE & DEATH
pC1f = "After leading you to your room, Prokroustes exchanges a few simple pleasantries
and shows himself out. As he walks back down the stairs, you make yourself comfortable and start
thinking about how the people of Athens will receive you.
The bed is a little short for your body, but you let your feet dangle off the edge. Before long,
you are fast asleep, dreaming of tomorrow's journey.";
pC1f1 = "Unfortunately for you, none of those dreams come true.
Exhausted from the long walk from Eleusis, you don't stir when Prokroustes lets himself
into your room. Quietly examining your size in comparison to the bed, he notices that your body
is too long. Upset by this incongruity, he takes the only sensible course of action.
Raising up the axe, he strikes you about half-way down your shins. Your shinbones shatter, and your
feet are separated from the rest of your body. Yet, you're still a little too long for the bed. To
finish the job, he raises up for one more blow, this time to your neck. The blade catches you in the
mouth, shattering your jaw and slicing clean through your neck.
You die before you even know what is happening. Nobody finds your headless and footless corpse.
";
Here is a text dump from the final slides:
"
Prokroustes1 = "Without Prokroustes around to run the inn,
travellers have a little more difficulty finding
a place to rest. On the other hand, they no longer
get murdered by a serial killing bandit. ";
Prokroustes2 = "Prokroustes' inn is able to flourish thanks
to your efforts at removing the nearby bandits.
Yet, it was odd how those bandits claimed to be
searching for dangerous criminals themselves. ";
Prokroustes3 = "Prokroustes continues to maintain his inn on the
outskirts of Athens. Mutilated bodies are regularly
discovered in the area, but so far nobody has been
able to determine who is responsible. ";
"