YOU SAID:

...in the dark, when all of a sudden this bright blue light filled the room.

INTO JAPANESE

ジャックは、メアリーが部屋に入って来ると突然話すのを止めた。

BACK INTO ENGLISH

Jack stopped talking all of a sudden when Mary went into the room.

INTO JAPANESE

ジャックは、メアリーが部屋に入って来ると突然話すのを止めた。

BACK INTO ENGLISH

Jack stopped talking all of a sudden when Mary went into the room.