It's really good, so far and I love the name Sea too!

(scream) only one chapter left after this?!

I love how she thinks CORN! that's awesome!

I agree with Sea! James is an evil little man!

Sea stole a bike! that was unexpected! XD

I just LOVE detective stories! Especially when siblings have to work together!

I like the conversations between Sea and her captors. XD

Wow, on the news already? Gahhh! Mean Jim and James!

this time? he kidnapped before?! Errr... Sea, get home safely!

Another Peter, James, and Lydia (not a bad thing, I think those names sound cool!)?! What a memory! He doesn't need to blame Peter though, or even take Sea! Errr...

I would've screamed if that happened to me... next chapter!

That's just like a nightmare I had once (but I gave much more different info)! I woke up after so I didn't get to see what happened next... going to the next chappie!

Woah! I love this story, it's great! What gonna happen to Lydia?! Gotta find out!

OH NO! poor,poor,poor Sea!

Aside from the lack of description, somewhat out of place dialogue, and one-dimensional villains who are barely explored, this was a worthwhile read. I'm saying this because I don't know how long you've been writing or how old you are so I'm not going to outright say how bad or good it is. I definitely see that you have talent. I'm sorry to nitpick, I tried to keep it brief though, there was plenty more that I could have said. I hope you weren't offended by anything I said because I only said it to help you get better.