Crystal stops abruptly, having not seen this beautiful elf before...another hag?  Couldn't be...she relaxes as Llmar and the elf embrace.  So who is this stunning and beautiful elf she wonders.  She cautiously walks up and nervously introduces herself "Hi, you must be a friend of Llmar's... I'm Crystal" she says as she tucks a bit of hair behind her left ear.

"Well, she cleaned up nice."  Garmus notes when he sees Sylvarie.  "Now, let's get Ysa back and get the hell outta here. This dwarf...he points a thumb at his chest...and probably that one too, needs an ale or four."

Eralynn watches Sylvarie and Ilmar reunite, happy to know two friends are together again. She knew the feeling. 

"Hello, my sweet child." Sylvarie says. "Yes, Ilmar and I are good friends. Come. Let us repair the damage I caused and restore YOUR friend. Shall we?"

Gorba and Falthrax are overjoyed to be free of the curse. "Thank ye, strangers. I know not where you came from, but ye have me eternal gratitude!"

A tiefling enters the tower, and, upon seeing everyone, laughs in joy as everyone embraces in a group hug with him. He matches the tiefling in one of the paintings that burned.

"Oh my god, Sylvarie?!?  It actually worked!!!" She looks at the dwarf "And you must be Falthrax...the Avowed sent us here to find you" she turns to Ecko "I think it's time..." she smiles and gives him a wink.

It's a joyful reunion and happy occasion, destroying the paintings have freed those who were under their curse - Sylvarie being their prisoner for over 10 years. While friends, Ilmar is overjoyed to see her normal once more. While Falthrax will return home happily, Sylvarie and Ilmar will return back to the woods. They all express their gratitude but turn their attention to helping Ysa turn back to flesh.

It is time.

As the group gathers down in the shrine where Ysabell was standing 'Stone cold', Crystal looks at Eralynn "This going to be mean... but funny.  Watch what Ecko does."  She looks to Ecko "So, you gonna do your trick?" she asks.  "Oh wait" she quickly casts invisibility on the rest on the group and Ecko appears to be standing in front of Ysa all by his lonesome.  "OK, go for it"

Seeing everyone prepared and happy, Ecko merrily chirps some Bard's tune he heard in a tavern somewhere as he trots along with the party down to where Ysa is petrified. He sagely nods towards Crystal as she renders the rest of the group invisible - Ecko seems to visibly age as an illusion (disguise self) surrounds his figure, causing him to look around fifty years older. Well, Kenku years - they're different. 

Ecko applies the spell scroll Ilmar gave him - and as Ysabelle returns to flesh, says - in an old, aged voice - "Ysa, it has been so long. Fifty years have passed." He clutches a hand over his heart in an overdramatic way, splotches of feathers missing and beak chipped with magical age. 

"Wait. What the f--?" Eralynn asks, wondering why Ecko's playing a joke, right before she turns invisible.

• Insight Check (advantage due to racial trait): 8 (Nat 1!!)/ 15   

As Ysa was slowly de-petrified, a bright purplish light filled the room - apparently her light spell had been petrified as well!  Once the cure was complete and she was stone no more, she stumbled for a moment as her legs went momentarily weak.  Confused, she looked around the room as if searching for something before coming face to face with an aged Kenku.

Quote from PlumPie >>

...in an old, aged voice - "Ysa, it has been so long. Fifty years have passed." He clutches a hand over his heart in an overdramatic way, splotches of feathers missing and beak chipped with magical age. 

Ysabell's face was emotionless for a moment before she replied, "Ecko?"  After a few more moments, a look of comprehension came across her face.  With a soft smile, she lowered her Scythe before adding, "I see based off your antics here that you all must've succeeded in my absence.  You will have to tell me all that happened when we return to Eralynn and Garmus.  My memory of this day is... hazy; though I am strangely hungry for desert - pumpkin strangely - though I do not believe they are in season."  As she was about to follow Ecko out of the lair they were currently in, she stopped and added pleasantly without any hint of sarcasm , "It is also lucky that I recognized you when I had.  Seeing your current... form and knowing a typical Kenku's average lifespan, in my confusion, I might've confused you for an undead and attempted to save your soul by smiting you from existence.  Luckily we don't have to worry about that."  

Ecko Deception: 19

Ecko clearly is a terrible liar - and, after a moment, he lets out a belt of laughs which seemed an amalgam of all the laughs Ecko had witnessed in his life. It’s strange - yet normal for the unpredictable Ecko. He cancels his spell and returns to his usual, less-beleaguered looking self. “Well, Ysabell, appreciate the effort! I missed you. We could’ve used you. We also met a new friend. Oh! We killed a hag. Broke the coven…” Ecko, in his usual, jerky, broken semblance of speech, recounts the tale in all-too-fast speech only a Kenku raised in a Gnomish family could be capable of. At the end, he finally takes a breath, and - “Come on! Let’s get out of here before something else happens.” Ecko abruptly frowns and turns to Ysabell. He shakes his head. What a shame. His doodles on the inanimate statues had all faded with the restorations. 

Crystal ends the invisibility spell revealing the rest of the group "Ya just couldn't quite pull it off, could you Ecko..." she says.  "Agreed, let's get out of here"

Before they take off, Crystal makes sure to retrieve the wand at the bottom of the pool in the shrine "This could prove to be useful"

This is what's at the bottom of the pool: a +1 Wand of the Warmage.

Eralynn shakes her head comically at Ecko, but is glad to see Ysa back to fleshy form.

"I'll be glad to leave this place behind."

With the group revealing themselves, Ysa gave them all a warm smile and began to approach before noticing a red-haired woman next to them.  Not recognizing her in the slightest, she asked her, "I'm sorry, but have we met before?  You seem to know the rest of my friends..."  

"Have you been stoned that long?" Crystal asks "Don't you remember when Eralynn introduced us and suddenly Saeth turned into some flying nightmare of a cambion? And then we came down here and found Sylvarie....well, a medusa?  Well, I'm Crystal and nice to meet you.....again."

"Some of yer brain still stone Ysa?  Ya don't recognize her?"  Garmus shrugs.  "No matter, let's just get back to the book barn and celebrate with some food and drink!  Although, I wonder if I can get some of that beard oil."  He says, running his hand down his beard.

With the victory over the hags, you bid farewell to Ilmar and Sylvarie and head back to Candlekeep with Falthrax in tow. This concludes this chapter, so go ahead and level up!

There was a long awkward pause between Ysa and the rest of the party as she looked at Crystal curiously - well awkward for everyone but Ysa, she is never awkward - before she replied simply and pleasantly, "Not in the slightest.  But my friends would not lie to me and I trust them.  So since they seem to enjoy your company, I'm sure we'll get along well.  You will just have to remind me of whatever adventures we've had in the past."  Slinging her Scythe onto her back - which was continuing to stay normal sized at the moment - she looked to Garmus and said in a jesting manner, "Yes I agree let us leave this place before we something else happens to us..."

Erlaynn happily leaves with her friends. Onward to another book related mission.

Would you guys like to continue?

Up to the rest, i’m game if they want to.