APPtitude for the Arcane

Like a spider sitting in the center of a gossamer web, the demon Tar'Kor had lured its prey into its trap and is ready to begin its feast.

A new APP had been discovered by Darren, it promised him all his hearts desires and the power to be whoever he wanted to be, it sounded fun, it sounded easy and with a few simple signs to spray paint on a wall it would be easier than actually studying towards his exams; all he needed to do was get a group of friends together and go to this old house where ley lines crossed.

Then there was a knocking at the door, a stranger claims he's had a puncture, he's was soaking wet and in need of a telephone. How could such a chance encounter affect the plans already set in motion?