I just saw a post from Wonderjanga (C.C. And Great Grandpa Wayne), and it improved my head cannon about Billy telling the league, that he remembers everything he went through in those 84 years of the time bubble.
I wasn't going to post this but I changed my mind. In my Head Cannon, Billy is already older, like 16 or 17 years old. He has been in the league for a few years since he was a kid.
Ever since Captain Marvel (or Billy Batson) joined the league, he's hardly ever asked for a reunion so it would obviously be a proven thing to deal with. Bruce was worried about this, for a few weeks now Billy has been acting strangely, missing some meetings and not responding to the communicators or the messages we send him.
So him calling a meeting was important, especially because he said it was urgent. The league members were quick to arrive, even Flash who is usually late arrived early, Billy didn't say much he just looked down trying to understand something... something was wrong Bruce could feel it.
Billy: Thank you for coming, I would like to say that the problem is not the end of the world, at least not our world but mine. I recently discovered why Fawcett has so many mental hospitals.
Superman: What do you mean by that Billy?
Billy: Do you remember the Justice Squad?
Wonder Woman: Yes, I fought alongside them in the second war, its members were Bullet Man and Woman, Golden Arrow, Mr. Scarlet and his helper Pinky, Mega Spy and Ibis the Invincible.
Green Arrow: From what we know, they returned to the United States for an urgent government mission. We have no further information about them to this day. Some myths say they were killed, others say they deserted and disappeared from the map. I prefer to believe the latter.
Billy: I found out what happened to them. When they returned for an urgent mission, they were assigned to deal with a being called King Kull. Just like Vandal Savage he is also a caveman, high intelligence and physical condition. In prehistoric times, King Kull was the ruler of a race of proto-humans known as the Undermen (also called the Beastmen), a brutish but technologically advanced race who ruled over humanity until they were finally overthrown in a revolt. Kull survived into the 20th century trapped in a state of suspended animation. When he woke up he decided that humans should suffer the same as he suffered, so he built a Suspendium bomb.
Batman: What would Suspendium be?
Billy: Suspendium was an artificial compound developed by Dr Silvana.
Flash: Since when has Silvana been alive?
Billy more than me and you
J'onn: Where are you going with this Billy?
Billy:Well... I-I knew Fawcett wasn't a "normal" place, not because of the abundant magic that pours into the city from the Rock of Eternity, but because of everything, the culture that hasn't advanced, the fashion sense that hasn't changed, and so on. I kept this in my head and went looking for answers, not only out of curiosity but because of memories that didn't make sense. Memories that I no longer remembered, I lived them.
Black Canary : Are you okay Billy?
Billy: yes, as far as possible.
Billy: I followed the clues that my memories gave me, and I arrived at an old building, the facade of Sivana, one of the Solar Centers, there was a passage to the basement and there I discovered where the old heroes of the Second World War ended up. They were trapped in a state of suspended animation, all of them, I came to the conclusion that the effect of the Suspendium had worn off after all these years. Apparently the Justice Squadron was unable to get Kull to detonate the bomb, everyone on Fawcett was affected, the heroes and Kull were trapped in a state of suspended animation that has not yet passed.
(Hal) Green lantern: Holy shit...
Billy: Yeah, holy shit. Well that was my report for the month, I would like to take a really long vacation, recommended by my psychiatrist.
Black canary: Psychiatrist!?!?!
Billy: Yeah, I'm seeing a-a psychiatrist, after discovering that my life was a loop of suffering and pain, finally my mind gave out and I developed a dissociative personality disorder, I-I- this is the first time I've come to consciousness. I-I-I have a few already, one of them is an 8 year old child called Hedwing, the other my supposed evil twin, all I fight are the sins, he was born from them I don't know his name yet...
Black Canary gets up and goes to Billy and hugs him."Oh Billy you don't deserve this"
Batman takes off his hood and stands up, hugging Billy. "I can't do much for you, but I will do what I can to help you, money won't be a problem."
wiping away the tears. "T-thanks, but that's not the whole problem, m-my Captain form also had new personalities."
After coming back from the shock Superman says: My God, I didn't know that was possible...
Not either, but the personalities that came are called Lord Shazam and a goth who says he has no name. says Billy leaving the hug: Lord Shazam prefers not to leave the Rock and Goth likes to explore the world.
So you mean that all that discussion about you being a child was a complete waste of time? Flash says trying to break the ice.
running his hand through his hair and leaning back in his chair (Hal) Green Lantern says: Nice try Barry, but how old are you Billy? Because the second war was about 85 years ago.
Well... coincidence or not, the Suspendium bomb exploded 84 years ago, in 1940 when I was 10 years old and had already been at war for 1 year. says Billy sitting in his chair.
Living for a long time has its consequences, Billy, but you are not alone, not today or tomorrow, because you have us and me, we will help you, little brother. Diana says, smiling at Billy.
Thanks but still, it's not something I like since well... I was childhood friends with Thomas Wanye. Billy looks at Bruce.
My father? Were you my father's childhood friend?.
Oh yes, how could I forget, Tommy was wild but fun, we got a good scolding from our parents, good times, I think that if the bomb hadn't exploded I would be a friend of the family, and possibly the one who would have been adopted would have been you. Smiling from ear to ear, Billy says looking at Bruce.
I don't know if it was good but that's it, have a good day, or night or afternoon, aah be well.