Here is the world of Chima falls into Darkness in Kingdom Hearts X (Chi) Back Cover.
Laval: After me and my friends find out about the rumour, and that day before our Journey begins... Darkness has arrived.
Laval is in his room, and went out and find out nobody's here
Laval: Dad? Lavertus? Li'ella? Tormak? Where are you guys? I wonder where they went?
He went outside and he look shock, because he saw a Giant Ball above
Laval: What the!? What is that?
Then he saw Shadow from his Dream
Laval: Oh no!
He went off to find his friends and they saw them, except Flinx who wasn't with them
Laval: Guys! There you are! What's going on in Chima?
Worriz: We have no clue, and we do know that there is Trouble around Chima.
Eris: And we thought, Lord Vortech is responsible.
Laval: But where is everybody?
Cragger: We don't know, my Parents is not here at home.
Rogon: My sister isn't here.
Gorzan: Even mine.
Fanger: The Sabertooth, the Mammoth and the Vulture is not here too.
Eris: And even though, everyone is gone.
Bladvic: Where's Flinx?
Laval: I don't know, where he is. But we have trouble from them.
They saw the Shadow
Worriz: Greay. Let's fight!
All: For Chima!
They are fighting them with their Elements Rings and then there are too many of them, and they surrounded them
Eris: We're surrounded!
And then the Shadow is gonna tackled them
Laval: Look out!
Then a bright light has save them, and then Laval and his friends has a Keyblade
Laval: What happen? And Whoa! Is that Keyblade?
Eris: It is.
Fanger: But how did we get one?
Cragger: I don't know, but we have to go find our friendd.
They went off and they saw Flinx
Then a burst of Darkness has blown our Heroes away, and they landed on a floating mountain and they saw everything collapsing
Cragger: What's going on!?
Then a Huge Shadow has appeared, they are fighting them and they defeated it and then Laval has gone Unconscious
Then the huge Shadow has been suck into the Giant Black Ball, and then Laval has been drifting away, Eris and Cragger are gonna save him and they did it, and now our Heroes has been sucked into the Giant Black Ball