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The PCs started out in Flamekeep, the capital of Thrane---seat of the Church of the Silver Flame's power.
Awakened in the middle of the night by a summons to the Cathedral, the PCs drag themselves out of bed.
They were called by Jaela Daran herself, the 11-year old Keeper of the Flame. She explained to the PCs that she had been seeing disturbing visions of hobgoblin warriors stirring in the eastern wilderness of Breland, and that among them were dragons and other creatures of great power. The visions would always culminate in the image of a great clawed hand sweeping across all of Khorvaire, and blackness in the end, and a whisper---"Five Sorrows."
Kikkeni and Holden know that "Five Sorrows" in Draconic is "Tiamat," the daughter of Khyber and one of the most powerful demon overlords with the power to corrupt and enslave dragons. If she somehow breaks free, she can single-handedly plunge all of Eberron into another Age of Demons. On the other hand, the dragons of Argonnessen could perceive the threat and launch an apocalyptic invasion of Khorvaire, like they did to Xen'Drik ages ago. Either way, death and destruction will rain from the sky onto the continent. Jaela sends the PCs on a downsized chartered lightning rail train to Vathirond, the easternmost city of Breland, immediately.
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The train ride is uneventful and comfortable for the most part---the Silver Flame had chartered a first class cart for the PCs, so everyone was comfortable---except perhaps for Ashiedae, who couldn't stand the smell of Holden's homemade, alcoholic gravy--which he poured on everything he ate. At the end of a long day of travel and two hours from their destination, a tall, broad-shouldered female guard tells the PCs that they're close, and they might want to get some rest since they arrive late at night.
Kikkeni and Holden decide to go to sleep. Ashiedae stays the hell away from Holden, while Loven sits on guard due to his lack of need for sleep.
Soon after, the lights in the cabin go out. Ashie hears something walking along the roof, and Loven rushes to wake his brother up. Ashie wakes up the sleeping Kikkeni, just as she realizes the train is accelerating.
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Ashie tries to walk up to the front of the cart so she could check up on the engine car, but the door opens. It's the female guard who'd told them to sleep earlier, and she asks if something was the matter.
Ashie asks if something is the matter, because the lights went out and the train seems to be accelerating.
The escort snarls, saying she can't let the PCs go any further, and draws a black-bladed, curved greatsword. Roll initiative.
The PCs are trapped in the narrow aisle in this order:
<Holden><Loven><Space><Kikkeni><Ashie><???>
Initiative goes as follows: Holden, Loven, Ashie, Rakshasa, Kikkeni.
Due to the darkness, only Holden can see properly.
Holden goes first, but is rendered unable to attack or move by the lack of space. He moves in front of Loven. Loven attempts to tumble past the assassin but fails, ending up where he started. Ashie retreats to make room for the frontliners and get a light infusion going. The monster is next, and she changes shape into a slick-skinned, eel-headed humanoid form. Kikkeni can see in the shadowy light from the door that the monster has backwards-twisted hands--the mark of a Rakshasa. They were usually spellcasters, but this one is evidently a warrior of some sort---a Naityan Rakshasa. Somehow, the agents of Tiamat were onto them.
Kikkeni attempts to get out of the way, drawing a slash from the Rakshasa. Already injured, she has no other recourse but to blast the Rakshasa with energy missile. The hit connects, but does little to slow down the beast. Holden then takes his turn, and is able to land a solid Mountain Hammer, breaching the fiend's damage reduction. Loven again tries to tumble past, but fails miserably and draws an AOO--which thankfully misses. Meanwhile, the train continues to accelerate to bone-shattering speeds.
Ashie's light finally gets going, and she casts it on Loven. The little warforged scout glowed like a disco ball, allowing everyone to finally see clearly. She manages to run past the Rakshasa into the engine without getting AOO'd, but Holden yells after her---"It's dangerous for you to go alone!"
The Rakshasa tries to lay the dwarf open using its Ghost Blade maneuver, and deals significant damage. Kikkeni uses constrictor's touch, wrenching the Rakshasa's outfit into an uncomfortable position. For a while, this is the only damage they get as everything else just bounces off the Rakshasa's DR and Loven fails to tumble past repeatedly.
Ashie reaches the control room of the engine and sees the Dragonmarked pilot of the train lying dead. Since she was the only other character with an Orien dragonmark, she attempts to gain control of the train, over and over again while the Rakshasa severely injures Holden with its Shadow Garrote strike. He thankfully makes the Fort save, or else he'd have been vulnerable to the Rakshasa's sneak attack in the next round.
Kikkeni activates intertial armor and stays back. After another series of unsuccessful attacks by Holden and Loven, the Rakshasa changes to its Elusive Adversary form and runs off into the train's engine. Everyone gives chase, with Holden picking up his adopted brother and dropping him inside the train engine car so that he can run close enough to flank.
Ashie realizes she has an angry displacer beast-like monster charging at her with a greatsword, so she decides to drop the lightning reins first and use align weapon on her crossbow---the only way they'll get to deal any damage to the Rakshasa.
Loven gets as close as he can, attempting to tumble past so he can flank the Rakshasa, but his checks just keep falling short. The Rakshasa takes one step toward him and hacks into him viciously with its greatsword and then takes a bite. All three attacks connect, injuring the rogue within an inch of his life.
Kikkeni steps up and shoves the Rakshasa hard against the ceiling with telekinetic thrust--the Rakshasa falls far enough to take even more damage. Holden is unable to go any further, and unsuccessfully tries to hit the Rakshasa while it's on the ground. Loven withdraws into the first class cart to prevent his impending scrapping at the monster's hands. Ashie takes a shot with her crossbow but misses, and decides to just turn her attention to stopping the train from hurtling out of control.
Although the PCs have been experiencing great difficulty in dealing with it, the Rakshasa decides it can't do enough damage in this condition and tries to run out the door, successfully tumbling past Holden, but failing to get past Kikkeni. Everyone panics, thinking the fiend was really trying to kill Loven.
Holden again tries to strike unsuccessfully, and Loven switches to his bow. Due to the light spell cast on him, however, he has no real way to hide. Without the light, the rest of the party is unable to fight in the dark. The Rakshasa, however, unexpectedly veers right past him and climbs onto the roof of the first class car.
Everyone agrees that it would be a good idea to disconnect the rear carts and leave the Rakshasa there, but Kikkeni remembers that there was one more cart to the rear. She runs with everything she's got, risking getting left behind with an angry rakshasa to check if there are still people in the back. She gets to the rear, sees the door to the galley cart in the rear hanging open. She calls out, but nobody answers. Deciding that she's risked enough, she decides it's time to run back.
Ashie remembers she left her homunculus--an iron defender--behind in the first class cart and orders it to run up to her. Holden and Loven successfully decouple the train, and the rear carts begin to decelerate. Just as Kikkeni is about to run back, however---the Rakshasa drops down right beside her and gives her a vicious slash, dropping her to 1 HP.
The player faces a tough decision---escape with her life or die trying to jump across the widening gap between the train cars? She decides that Kikkeni would rather risk running and provoke the AOO instead of withdrawing. Running would take her further and allow her to get close enough to the front of the cart before the gap widens any further. She provokes the AOO.
The Rakshasa rolls a 20.
Not wanting to see the party blaster die in the first encounter, I give her the alternative choices that she could do. She could withdraw, spend a full round action to gain Psionic Focus to activate her Speed of Thought feat (giving her a boost to her jump to clear the widening gap), or withdraw and then just jump the next round. She decides it's better to have a lower bonus than to have a higher DC, and withdraws, intending to make a running jump the next round.
The Rakshasa furiously pursues Kikkeni, but she runs across and makes her jump. Rolling low, she spends an action point to clear the gap as Holden catches her. Left behind, the Rakshasa snarls at them from the first class cart while they pull way.
I ended the session there.
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The party handled the encounter surprisingly well, considering the Naityan Rakshasa was CR 7 and the terrain was very unfavorable--not to mention the uncontrolled elemental in the train's engine. The part is still considering using Kikkeni's energy bolt to rip through the carriage's floor with sonic blasts, destroying the mounting of its conductor stones and sending the whole thing off the track.
It was a really bad move of Ashie to cast light on the guy who relied on stealth, although it would've been even harder to fight blind. DR 15/good and piercing and the 50% miss chance would've made it almost impossible to damage the Rakshasa.
Now that the PCs have finished the intro, I'll be dumping them into the adventure proper, starting off from Vathirond (which replaces Dennovar in the adventure), and taking the 120-mile journey from there to Drellin's Ferry via chartered House Orien coach. From there, the party is going to see a lot less of civilized Khorvaire. Eastern Breland is quite easily the middle of nowhere, bordered by the Mournland (wasteland of a country destroyed in the Last War) to the east, Darguun (fledgling goblinoid nation) to the south, and mostly open plains and savannah to the west. The nearest large city to the west, Starilaskur, is a good thousand miles away.
The threat of Azarr Kul's Red Hand of Doom cult is too remote to be dealt with by a large mobilization of Breland's army, and Thrane of course isn't willing to send its military into another country's territory.
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Azarr Kul's immediate objective after crushing Elsir Vale and Vathirond is to march east to the Mournland, where an enormous arcane Khyber seal sends power to Tiamat's prison proper---the Pit of Five Sorrows in Argonnessen. There are five such seals across the world, but weakening the seal will allow Tiamat to send in more and more of her Aspects, bolstering the hobgoblin cleric's power and allowing them to face off with Breland's considerable military might. He's even made a pact with the self-appointed Prince of the Mournland, a rogue troll warlord who has brought his band of mercenary berserkers into the Red Hand military---the border with the Mournland, after all, is not guarded well.
If Azarr Kul manages to breach the first Khyber seal, it could either give him a massive boost in power---or it could provoke a draconic invasion the likes of which have not been seen since the dragons destroyed Xen'Drik.