Fleur misspoke. The heart is located in the chest cavity or thorax, NOT in the abdomen.
Barnaby misspoke. A star shape is a pentagram. A star inside a circle is called a pentacle.
No one can be smothered in a mask with two eyeholes and an open mouth.
Dumping pails of water outside the door would do nothing other than return the water to the source of the flooding. It should have been siphoned away from the area or dumped down a drain.