Answer:
"Creepy" is a word that best defines the general mood in "House Taken Over".
Explanation:
"House Taken Over" tells the story of two single brothers who live in the same house and who have a peaceful life, without leaving home and without having much contact with other people. One day, or hearing a strange noise, the brother says to brother "They took that side of the house". At no time does the narrator say who "they" are, but the brother and the brother abandon the "they" side of the house with everything they have there. This creates a very scary and creepy atmosphere, because "they" continue to invade parts of the house, until the two brothers lock the doors and run out of the house to avoid meeting the invaders.