Frankie Banister and his family are preparing to celebrate Grandad Abraham's 175th birthday - an occasion that's going to be even more HONKHUMPTIOUS now that Abe's ghost has showed up! When the unexpected spook reveals a secret UNDERWATER wing of the hotel that's been hidden away for years, the Banister's decide there's only one thing for it ... a whopping welcome home bash in the spectacular BRINY BALLROOM. But memories aren't the only things waiting at the bottom of the ocean. Secrets and sea monsters are lurking in the shadows, and is everything as it seems with Grandad Abraham's ghost? Or is there something fishy going on?
