Hi Mylia.
I will make a point to play your arc this evening, and will provide my feedback for you.
I would welcome you playing and rating my main arc, Spanks For The Memories, #21144.
I'll be back this evening with my full review. I look forward to playing Midnight Bells' Toll! 
Q. Just wondering Posi, where are the new dance emotes we were told would come with GR?
A. Positron: Whoops, my bad.
1387 badges, and counting
Thanks spatch, I will be at work during the night, but I am good all day tomorrow to try it out. What is the level range for it?
First off, my feedback on spelling, grammar and other text-related issues.
Mission 1:
1. Mission preamble, mission title "toll" should probably be capitalized.
2. Escort (Lady Persephone) bio typo -- 'eminant' [sic] should read 'emanate'.
3. Mission complete clue grammar correction -- change to read, "You saved Darrin's acquaintance..."
4. Custom group, the Knowledge Warriors, bios use the generic bio text. You should consider customizing if you have file space.
5. Exit pop-up typo -- 'Acquaintance' should not be capitalized.
Mission 2:
1. Contact text typo -- second sentence, change 'it' [sic] to 'its'.
2. Boss defeat clue and mission complete clue typo (same typo in both) -- add an apostrophe to 'Warriors' in the last sentence, since its use is possessive (i.e. it should read, "...at the Knowledge Warriors' base.").
3. Object destroyed clue typos -- 'destroy' should read 'destroyed' and 'seen' should read 'see'.
4. Exit pop-up typo -- 'plan' should read 'plans'; also, 'Warriors' should have an apostrophe added.
Mission 3:
1. Contact text contains 'clunky' English. Consider amending the second to last sentence to read, "Keep it up, but please hurry. The ritual is close to completion."
Mission 4:
1. Contact text typo -- 'intervene' should read 'interfere'.
Overall feedback:
Generally, the story presented well, and at four missions, it was a concise arc. I didn't complete the last mission, as I could not solo your final EB. The combination of the EB's self heals, and her endurance sapping made soloing her nearly impossible -- it was a stalemate (I played on a fully IO'd level 50 peacebringer). I would recommend forewarning the player that the final EB is not solo friendly and/or add an ally or two to the last mission. Or, consider toning her down. Your call, depending on what you're trying to achieve.
Also, I caught many of the more obvious text and grammar issues above. However, you may wish to to an overall review of your text, as there were multiple areas where punctuation was incorrect, or missing (usually with commas).
Hope you find this helpful. I gave 5-stars as I saw the overall effort that was put into the arc's build. It could definitely use some buffing around the edges, though. Cheers!
Q. Just wondering Posi, where are the new dance emotes we were told would come with GR?
A. Positron: Whoops, my bad.
1387 badges, and counting
Playing it right now and as noted above there are a lot of grammar problems. Some sentances are just redundent. Like this
know in Cimerora as Lady Persephone, known as a collector of rare and mystical artifacts.
You don't need to "knowns" it can just be Known in Cimerora as Lady Persephone, a collector of rare and mystical artifacts.
The bio on mental crush is a bit confusing too...
but all this changed when she turned 16, when she lifted her boyfriend out of the car. <--- a car that was on fire, smashed, what? you need to fill in the details and remember we don't know what you're talking about, until you tell us.
The running away bit was interesting I didn't get why that was a failure at first but made sense when I realized it was gonna tip off this Electra person. the Mission could have been made more clear.
The last missions introduction is written the best out of all the of the ones in this arc. I feel very sorry for the girl whose prom we're crashing...
Anyway I didn't finish ther arc either unfortunately... not because I couldn't solo the EB (I did with my Kat/Regen scrapper though it took every accolade and dirty trick I have). But because it seemed Mylia didn't spawn after I placed the trap, not sure if it was a bug I did try twice.
I gave it 4 stars because it did seem interesting, but that was being a bit generous. There's a lot of grammar that needs to be fixed and things could be explained better (maybe a tad too vague yeah).
Anyway if you want to try one of mine out please try "The Praetorian Invasion of the Land of Oz" Arc 168841 (for level 50s)
I did kinda like the herogroup especially the garbage can shield guys, they looked pretty cool.
Played arc 21144. It was well done and I would recommend it to anyone that wants to play a good and heroic arc. I gave it 5 stars. I am writing up a draft for the review now. So hopefully it will be up tonight.
All I know right now fully is that I felt that mission 2 was like a filler mission and kind of breaks the continuity of the MArc.
*EDIT REVIEW*
Alrighty time to put my review of the arc by mission.
Before Missions beginning:
Liked the costume for the custom character. So far I am seeing that this will be a detective work in this story arc.
Mission 1
Hmm hello CoT. It was a surprise to see them but it intrigued me highly and made me want to know why they were here and what they wanted with good ol' Spanks.
Pick up the clue quickly and began looking for the boos burning sulfur. After some silly walk around not thinking, I meet up with the boss and teach him a thing or two not to steal 
.
From what I see right now that kind of set me off, was the clue the boss dropped. Since I got the clue first, and it says "now look for the clue" in lamers term, I was a bit lost.
Mission 2
Aha a boat, not my favorite map so I skip through a little bit of it. The mob looks were great, but was a bit lost on some selections on powers. I was think mafia, bats, guns fists, thugs, not really blades, but nothing too bad.
What I felt though this mish was like filler, was nothing too much to the story I felt. Some of this could of been added in to one of the other mishes like a reflection from his past.
Although we did learn he paid the mob to be non-violent so where did he get the monies.
Mission 3
So now we are back on track trying to find out what is going on with Spanky by getting back his heirloom of the Dark Astoria map. So basic beat em up CoT with a splash of a demon.
Demon costume is well done, I was intrigued with the battle. It went quickly but I had to show them I meant buisness .
So we got the map back people love me and now the map is being looked into in why this was soo important.
Mission 4
Good old cemetery map in DA. I am looking for a lead of their one boss, so I decide to make sure to look at all the wonderful costumes along the way.
All of them are well done, a true nice sight to the eye. Upon coming to the boss....err Lieutenant I dispose of it easily. But aside from a weird language it felt like a paper mish cause in a way repeated what we got, but didn't bother me cause sometimes we just need to make sure all the facts are straight.
Mission 5
So a nice foggy map, not one of my favs, but I have been enjoying the arc so far. So get to the end and meet the nice EB demon. Mean and nasty looking I lock down for the fight with him and go blow for blow.
Once defeating him a spirit and a couple more demons popup. So once I take care of them I learn that Spank sold his soul to help fund his governance. Now he is tormented by the demons, but he stays through cause if not all hell will be unleashed. A noble deed and a feel good part at the end.
Overall
I think the arc was well done and well written. There is only one or two things I saw that might need to fix up by typos. Also I felt like the arc could be done in 4 mishes it felt a little long at 5 but still good.
Overall as I said above it is a 5 star arc to me. I highly recommend this to my friends to play 
Indeed I have taken a lot of comments and worked around as much as possible to improve the arc, but little has come in aside from comments from both extremes.
The arc is 12217, and it is called Midnight Bells' Toll. It is an villainous arc, that is more story driven, with an EB at the end so it will be a boss if on lowest difficulty. It was designed to be 40+ arc.
*EDIT* Also you might need some help with the EB at the end, although she can be solo'd.
I will state that there is some vagueness in the arc, that is the way it is designed.
Now what I am looking for on what you think about the arc(I know it seems demanding but I want to make sure it is enjoyable for all):
Are the custom characters too difficult?
Is the plot too vague? Does it need more telling?
Was the arc completely unplayable?
That is what I would really like to know, you do not need to tell me if you do not want to.
What is in it for you? Aside from my grand gratitude for you playing my arc, I will play any one of yours rate it honestly and give you a full review. I am not a grand writer like many others, but I will do the best to be non-biased and give you some constructive criticism.