A step mum shouted at the kids for messing about at night - then discovered the sinister truth behind the noise.
CCTV footage reveals the moment a box of Lego crashed to the floor from a chest of drawers while Keira Henricksen's three stepchildren slept in the bed next to it - leaving one cowering under the blanket in terror.
While John, seven, and Paul, five, slept through the commotion, David, seven, jumped up before Keira rushed in to find out where the noise had come from and found Lego pieces scattered on the floor.
