False Artifacts, a Forgotten Mountain, and a Lost Soul (& Lots of Mortal Danger)

Day 5 - 53rd of Heïa, 429 New Era
The onslaught was tough. Faolan, getting too heated, ended up cut off from all of us and bearing the brunt of the Merregon horde. Already weakened from the fighting before, he made a valiant effort with his sword and remaining stamina. Luckily, Bea joined us after hearing the cries and blows from within. It was still not enough however, to prevent Faolan from being knocked down. I was useless for too long while grappled by a chain devil. I break free, and I disintegrate one of the remaining bone devils. After combat, I use the rest of my healing potions while Bea tends to Faolan. During the battle, each of them had been dropping coins when we defeated them, amounting to 20 soul-trapping coins. Gash determines they are from a fiendish plane (there are multiple), and we decide to hold onto them despite their currency being worthless on the material plane, as their only uses aren't particularly altruistic in nature. We're keeping them out of circulation.
 
We make our way to the room for the Warrior's Sword and Scholar's Pen, and find it has been busted open. In a room further in, we find two bone devils and a skeletal armoured figure fighting 6 mummies. Investigating the first room, Bea & I discover a clue on a seemingly pointless staircase with the following inscribed at the bottom: "ascend from places past to find the treasures vast". I can tell that something detected me with a form of divination, but aside from all of us feeling a tingling sensation, nothing happens. Faolan then goes to the other side of the room, and the tingling sensation is stronger. We're able to follow our tingles into the room where the devils and mummies were fighting – now there are two mummies left. The mummies acknowledge us but make no hostile action to us at first – however the skeletal figure directly challenges Faolan.
 
When the figure is defeated, he drops the shield of one Hadrian Vatinius, whom we had killed about three years prior in Qua'adar. The tingling sensation becomes stronger than ever near one of tombs. Written on the outside in ancient Yulan-tai is
 
"Journey south did I to the land of high green, hidden from the from the Quv, to the land of my love I journeyed unseen,
 
There you will find my rest, under mountain’s cover, in the arms of my lover, if you pass the test,
 
For I find peace at last, but you can bring me back, if you bring my tack, across an ocean vast."
 
We open it, and we find an effigy of a kingly figure. The diadem and a girdle (or tack) are being worn by it, and I can tell they are magical, so we think they are the real deal. Before figuring out our next moves, we sort through the loot. Bea & I focus on the mystery staircase - and upon taking an artifact from the tomb, a spectral woman appears – unusual for a high priestess of the late Yulan-tai period. She's the one who detected my presence on the staircase. We talk, and she tells us that the real tomb is on "Mount Hatesh", or at least it is where the Lost King went. She – Alesha – also reveals that in fact, the Lost King and his followers were betrayed by those who followed "the Deciever" – casting doubt on the spotty historical records of that time. We also learn that our home of Mysteria was once called Kalak'Nal – or Sstatassal by the betrayors.
 
We arrange to transport Alesha – she can posses and inhabit beings – in my body to Mysteria to be placed in Eirill until we can seek out the services of someone with the ability to magically duplicate her old body. We repair the gruff man's boat, and release him and Miguel from our services. We return underground and rest for the night.
 
Day 6 - 54th of Heïa, 429 New Era
After our successful long rest, I teleport us back to Mysteria with Alesha's soul in my mind. It feels more tiresome than normal, which makes sense. Upon arriving in Mysteria, we transfer her into Eirill. We sail to Antiokus across the bay, to find a permanent body for Alesha and to unload our archeological finds. We find a purveyor of antiquities, and off-load all but the jade (20), diamonds (10), and a fancy diamond. He tells us to check in in a couple months (in the Aeillan calendar).
 
After most of the reputable casters refuse to help with a necromantic spell, I manage to track down the smell of cinnamon and find someone in a back alley with the goods. We give them 700 gp upfront, and we will return in a month. After concluding our business, I return to Mysteria to introduce Alesha to Jim.