Fright-master R.L. Stine invites you on an all-new, all-terrifying adventure!

Billy and his sister, Sheena, unwittingly dive into a terrifying mystery when they accept a surprise invitation to HorrorLand - the amusement park that always lives up to its name.

But first Billy and Sheena must sink or swim aboard a doomed ship that happens to be underwater - with a captain who happens to be dead.

At least, he used to be!