Hi, newbie to quest here, making a text-based game for a school project, so sharpish help would be appreciated

I'm trying to add a scene where, when the player walks outside they see an arrow flying towards them. They have 5 seconds to type the word 'duck' or they die.
I have made a timer called 'arrow timer', set it to 5 seconds and made it start when the player walks outside. After 5 seconds it prints a game over message and ends the game.
This is as far as I can get

Any tips, tricks, step-by-step instructions?
Thanking you in advance
PS: If possible, I would like to have the player type 'duck', not 'duck arrow' or something similar.