Maria and Bethany try to make friends with Kara and Abi in house of devil, when she finally managed to contact Kara in the previous chapter, Beth accepted all of Kara's terms which are;
1) Use the devil's house
2) Key phrases "Human Disaster"
3) Maria enters alone first
Those were Kara's terms to see each other for the first time, since they saw each other for the second time they started a small friendship but Kara still kept talking loudly so as not to create a false friendship.