A cross, more specifically the Crucifix or Christian Cross is the best known symbol in Christianity that represents the instrument of the crucifixion of Jesus. The symbol appears in the game as a holy item that drains Lucius' powers.
Hanging from the walls of the mansion in various locations, crosses are holly elements that will quickly drain Lucius' energy and prevent him from using his powers as long as he remain in their proximity. When close to a visible cross, it will pulsate with a golden light, while blurring the player's screen at the same time. Crosses exert their influence in a sphere around them, so they can weaken Lucius through walls, floors and ceilings if he is close enough.
The cross' power can be easily neutralized. Simply by interacting with it will cause Lucius to invert the cross and negate its effects. Even if this is done in front of other household members, none of them will attempt to invert them back. The only interaction with crosses is through a direct contact, meaning that Lucius cannot invert the ones that are out of his reach, either too high or the passage to it is blocked by chest of drawers, beds, etc. and telekinesis doesn't respond to them, as the cross neutralizes its powers. Each time a new day starts, whether it be in the morning or at midnight, the crosses will reset themselves to their regular position.
At certain parts in the game, Lucius' enemies will rely on them to incapacitate him. Certain arrangements will make it necessary to turn some crosses before Lucius can use his powers to dispatch the target, such as the one where he battles Wayne in the ritual chamber, after killing Fabius.
In the sequel, Lucius must either throw something at a cross to flip it, or use Telekinesis, as direct contact seems to no longer work.
- The inverted cross is commonly believed to be a satanic symbol, while it is actually the symbol of Saint Peter. According to legend, St. Peter requested that he be crucified in a different way than Jesus Christ, because he felt that he didn't deserve to die in the same manner as his lord, so the Romans raised his cross with him upside down.