First, if it was supposed to be horror game then I don't think an appearance of timer is not needed.
... Based on what you said :
You use a certain flashlight script (googled, found "khas awesome light effect") though can't even open the link due to very slow internet...
Oh, it's really a flashlight...
Was it triggered by a switch? Was the flashlight you want can be toggled on/off?
if yes, then you need to create 2 common event :
- Spoiler:
Connect the first common event to the item "Flashlight"
If it's using script call or any other mean, forget this...