Troll Patrol

Once upon a time there were four trolls. They were ugly and smelly and their mothers dressed them funny. They liked to visit a little girl called Kerry... Sometimes she invited them to visit and sometimes she didn't. But visit they would.
There names were Depression, Regret, Worry and Deep-Dark-Deceit.
Depression was closest to the little girl. She had slowly come to accept her relationship with the troll, Depression. Besides, they discovered recently that they were related (one of those distant difficult-to-understand family relative-relationships. Perhaps a cousin-removed?) While the relationship wasn't a happy one, she realised she could live with it and would they would drink herbal tea together when they were feeling really, really sad.
The troll called Regret was not a very frequent visitor, and most times the little girl would ask him to leave as soon as he arrived. However, when Depression was already visiting, Regret would insist to stay, and they would drink tea and eat anything they laid their eyes on (for about 4 days, until the little girl called in reinforcements to forceably remove the troll: Regret).
Worry mostly visited the little girl in the night, in her little warm wooden house. He'd talk to her softly when she was trying to sleep, until she'd either drug him to keep him quiet or write down what he was saying and put it, folded neatly, into her green book to think about another day. Worry started to feel unwelcome, a more sensitive soul than Regret, and his visits dwindled to just a couple a week.
Now Deep-Dark-Deceit was the ugliest of them all (yes, someone should really have talked his mother out of that name; even DDD for short isn't that short). Warts on his nose and more body-odour than a camel. And he'd snort, loud and gross. The little girl smelt him coming long before he actually arrived, but she just used a little air freshner and assumed Worry and Depression were playing daytime-tricks on her. When he finally did arrive, he was so ugly and so smelly that it made the little girl cry. She asked all her friends and family (and an occasional psychologist, good ones not in short supply in this fairytale) to help her understand why he'd chosen to visit her. She felt she had enough trolls for one little girl. She managed to deal with him that first time and asked him very firmly to return to where he came from. She thought he had. But alas. He was lurking. Waiting. And hiding, very well (as is his very nature). She could still smell him, but thought it was just the lack of air conditioning in her little wooden house and that the other trolls were just playing more tricks on her. The smell was too bad though, and once she decided to look for him in earnest, and found him. Under her bed. Mouldering slightly, and with a big grin on his face.
She's been watching him under there for a few days, now, and hasn't quite worked out how to deal with him. She's been building up her strength and gathering her allies to get him out of there. She understands that his smell might stay for a very long time after she's removed this bad troll (and removed he will), but she is determined. Intentional.
This story doesn't have an end yet. It's a work-in-progress, ambling in its own time towards a happy ending...