Im my own person - Sharkboy and Lavagirl

when a girl comes to planet Drool, she looks like Lavagirl and they both have the same power. People say they should be twins. But the only thing the girl and Lavagirl are not the same about is lavagirl is nice. The girl i Evil. suddenly she tricks lavagirl into going some wear but she locks lavagirl in a closet, and she takes over her life. Will Sharkboy Find out that girl IS Not lavagirl? Will Sharkboy find Lavagirl?