Hey! okay, so far what I've read (prologue through chapter two) is actually pretty good. It's engaging and interesting, and catches your attention. You don't really have a problem with grammar so much as tense...either keep it in the present tense or in the past tense. The prologue is a little confusing, mostly because you keep starting new paragraphs in the middle of what people are saying. Also, Maggie's reaction to certain things seem to vary quite a bit. Sometimes she seems like a person in shock (which is good- that's probably how someone who'd just gone through a traumatic experience such as a plane crash would act), but other times she acts like a bratty teenage girl...do you want her to be kind of in shock, or completely resilient to the effects being in a plane crash would have on most people? One last thing: type out numbers less than ten. Overall, it holds a lot of promise :)