Where to place an exclamation mark

Question

I am writing about my house. I want to say,

'Inside of our house there are 3 floors although the second floor is the attic, which is dark and scary like in a horror film!

'Dentro de nuestra casa hay 3 plantas aunque la segunda planta es el ático, que es oscuro y siniestro como en una película de terror

I put the exclamation marks at beginning and end of the whole sentence, but my teacher has marked this wrong and put the first exclamation mark between ', que' and 'es' and not changed 'es'--- to 'Es' to show a new sentence has been made. So which is right?

Welcome to SpanishDict. Talk to her/him and ask them why. We aren't your teacher, so maybe she can explain. - rac1, Oct 23, 2016

I am not able to since they left our school, so I am a little stuck! - katrinakatnelson, Oct 23, 2016

I am going to make the two phrases, separate sentences and hope this is correct! - katrinakatnelson, Oct 23, 2016

Welcome to spanishdict. We ask that all new members complete their profiles with their native language, and what level of Spanish you feel you are, like, beginner, intermediate, etc. as well as gender. - ray76, Oct 24, 2016

Answer 1

To put the ¡ between "que" and "es" makes no sense to me because the "que" starts the last clause. You could either delete the "que" and start a new sentence with ¡Es ....., or write: .... es el ático ¡lo cual es oscuro .......! (in this case we don´t usually capitalize the word after ¡ because it really belongs to the entire sentence, but I can´t say if this is grammatically correct or not).