Neil Gaiman's Coraline is the perfect Halloween read or read aloud to kids book. It's quite creeptastic! This year is also it's 10th anniversary which is just another reason you should read it this Halloween season!
But if you aren't sure you want to take my advice--right away--then you can LISTEN to Neil Gaiman, Lemony Snicket, and other authors read chapters of this fantasticly scary--but not to scary--book!
Or if you prefer you can listen/watch Gaiman reading The Graveyard Book--one of my all time favorites! But to be honest you should listen to both!