I need to finish this story...

Any suggestions? I won't post the whole story, because it is too long, but the story is about 2 girls. Thier names are Rachel and Mandy. And as they were walking from home one day, they realized someone was following them. They were to far away from eaither of their houses so they went to a little coffee shop that Mandy new of. She new the shop owner, Mrs. Baker, who was a old women, but very nice. Mandy told Mrs. Baker that she had seen the man in the newspaper saying he was a kidnapper. The 2 girls hid as soon as they saw him coming. The guy acted nice, and asked Mrs. Baker if she had seen 2 girls named Rachel Woodman, and Mandy Bridges. Mrs. Baker said no, and wondered why. Thats as far as I got, and was wondering what the kidnappers response was going to be. I want it something he made up, to try to fool Mars. Baker and find the kids. I also don't know what he is going to do with the kids. I know that when you write a story, you think of it all, then write it, but I thought of it, and new that I would forget, so I went ahead and typed it down. Thanks to anyone who has the best part of the story. Please son't fool aound and say something like he's gonna feed it to the monsters or something. Please, I need to get this done, and I need it good. It dosn't have to be a lot, just enough to get me started again. Thanks.