The whistling lake

This story will have thirteen chapters overall and each chapter will have 1000 or more words.

When swapped to a world where nobody is quite how they seem, how can you trust anyone? How do you know that the shops aren't poisoning the food? How do you know that your family isn't secretly someone else? How do you know that your alliance are actually your allies?
If you got a notification when danger is coming, what would you do?
Would you use it for the greater good? Would you take the chance to hide before the danger arrived? Or would you use it to allow someone's death?
But what if you die yourself?
Careful how you play with danger.