I realize I didn't update from last week...
The fight took up most of the episode, as everyone seemed very keen on stopping Kazyk before anything else. With all the attention upon him, the devil wasn't able to fend off enough of the party's attacks, and was ultimately dispelled by a stray blast of radiant energy from the barbarian (whose wild magic never fails to amuse me).
Meanwhile, Indomitability took advantage of the opportunity to carve through the Seela, whose instantly panicked, but managed to maintain the song so far. The halfling monk, furious at being dismissed by the fiery being so often, continually charged after him... and Indomitability kept using his legendary actions to trip him then walk away, promising to return to finish him off once he was done with the Seela. Panicking, the heroes threw everything at Indomitability, though had a hard time whittling down his ever-recovering hit points... and out of spite, he finally revoked everyone's boon. Several potions of Stand the Heat were rapidly quaffed, as the fight continued.
In one turn, though, the rogue landed a nasty critical sneak attack while the warlock slapped him with Chill Touch. Injured and winded, the trillith-inhabited (unknowingly) barbarian challenged Indomitability, calling out his hypocritical attitude of seeking revenge against people whose only crime was trying to stay alive. Now knowing that the sword he held could sustain the Seela, the barbarian asked Indomitability if he would stop his rampage, should the singing stop voluntarily. He accepted the terms, and the party rapidly swept through the city, persuading the singers to stop the song.
In a tense moment of silence, they complied... then started laughing and crying as they realized they would indeed, survive, even as the forest burned. Indomitability finally addressed the crew, still defiant, but with a newfound appreciation for their tenacity. He granted his boons to those with the most unshakable spirits of the clan, then bid his farewell, and faded away as he galloped into the skies. Its fuel finally able to be consumed, much of the surrounding woodlands began to splinter and shatter, forty years' worth of burning finally taking its toll. But in a poetic stroke, the weather shifted, as a light rain began to fall upon the wood for the first time in decades. Everyone enjoyed a brief celebration, cut short when Vuhl seemed to speak directly into their minds, congratulating them on freeing his brethren, and complimenting their unorthodox means. The song of forms ended, he converted into his true form, a writhing mass of spectral black serpents, and promised to check in on them. Crystin shared that she finally understood: he was truly named Deception, both he and Indomitability were Children of Trilla, and they would indeed meet again.
Deciding to once more camp at the tower near the elf village, the party was interrupted by Tiljann before they left, as she begged them to take her with them. All seemed amenable to the addition, save the halfling monk, who complained about YET ANOTHER tag-along, to many laughs.
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One thing I've tried to do in this campaign is give the Trillith's true forms a more conceptual basis. Indomitability remained a stag, of course, and I translated Deception's black tentacles to a mass of snakes. Kathor's "Justice" is a black stallion, apropos for his origins, while Crystin's "Foresight" is a barn owl. Our barbarian is indwelt by "Zeal," represented by a wolf.
I'm trying to think of other animal-like representations for the other notable trillith that the party will meet. Balance might become a crane, while Agony is a grizzly bear (thanks to his captivity in the Scourge Prison). Other trillith that I'm not so sure about are Madness, Vigilance, Metamorphosis (the main ones that come to mind, but I'm sure there are more I'm missing). Freedom might not show an animal form at all.