I remember this game was a 3d mobile game. I know it was available on the google play store because I played it back when I had an android tablet. I'm not sure if it's available on the apple app store because I don't remember it's name. I remember the name was two words and the second word was wonderland. the first scene in the game shows two kids (definitely siblings, possibly twins) walk up into their attic. one of them was male and one was female and you chose one to play as. they both had similar outfits and either blond or light brown hair. the character you didn't choose would be kidnapped by the main villain of the game through a portal that opened in the attic. the one you chose would jump in after and the main focus of the game was to get their sibling back. once you entered the portal you would go to this abandoned place that is depicted in this project (very rushed and poorly drawn lmao). there was a pool of water between an elevated area which had an apple tree and some kind of board with notes on it as well as stairs leading to it. the floor was a mossy tiled stone that was damaged by some evil dark magic or something. after entering this area your character would explore around a bit and meet up with a fairy that looked similar to mew from pokemon but with different features and a dark blue and cyan and/or purple color scheme. they introduce themselves and team up with the main character as a guide. they assist you in battles with one-eyed dark slime creatures that you fight when you explore the fog that surrounds the main area. I also remember there being a merchant of some kind. so yeah if anyone remembers this game or knows if it still exists please let me know.