SOLVED. Telepathic twins in rigid class division society [s]

[Biah]

In a setting where people are divided into classes by the number of "points" they have and distinguished by the color of clothes they wear. I know for sure that gray is the color of the bottom of society where people live in sewers out of sight. Telepathic twin siblings one boy and one girl leave that society's walls with an eccentric classmate who gets touched by old people and turns old on the spot. Later those old people run towards balls of lava that fly everywhere and they're like TAKE ME and they get taken. Yada yada yada The old people turn into beautiful children and become never ending army that aren't stopped by a pit because eventually pit fills with bodies and they climb over. Back at home their mother is behaving as a peaceful Ghandi figure. She silently protests classification by wearing both red (color of previous class) and grey (current bottom of society class) clothes and sitting on some high place like a tower or telephone pole with her baby. Poppy or something.

Two things I'm certain of are

Baby when being evaluated for points is told to go wee wee wee by mother and wees on evaluator

Sister says to brother "go ahead and strike me"
An opens her arms to be killed when brother is being mind controlled.

[Biah]

Oh my goodness XD I just found in reccommendations lol

The Wind Singer

[Biah]

I'll move to solved when I land a computer. Am on app

[Ann aka Iftcan]

Biah--please be sure to shelve your book. (To do that, you copy the addy of this thread, then go to Bookshelf do a search for the book, click add (or Edit if someone else had already searched for it) then, when it pops up with the links for the book, copy the address into the box and choose "Adult Fiction" (or whatever shelf it belongs on). Then, when you move this down to Solved Please put a /s at the end of the description that you gave for the search. (I'd do it, except that there are several books of that name and I'm not sure which one is "your" book.)

[Biah]

The wind singer (wind on fire#1) by Nicholas something

[Biah]

William Nicholson

[Andria]

The Wind Singer for the link. I'll update our bookshelf. :)