TY - BOOK AU - Christie, Agatha TI - Hallowe'en party T2 - Agatha Christie collection SN - 9780007120680 U1 - 823 PY - 2001/// CY - London PB - HarperCollins N2 - At a Halloween party, Joyce, a hostile 13-year-old, boasts that she once witnessed a murder. Within hours her body is found, still in the house, drowned in an apple-bobbing tub. That night Hercule Poirot is called in to find the killer ER -