I'm sorry, I haven't actually read 'tick tick slide horror story' so I can't tell you the exact plot.
The title 'tick tick slide horror story' is quite mysterious. It might involve a countdown of some sort (the tick tick part) and the slide could be a physical location like a water slide in a derelict amusement park that has some horror elements associated with it. Maybe there are strange noises or apparitions that occur as one slides down. However, without reading the story, it's hard to be certain.