Adventure Choice

In this section we ask the user to make a choice
If they choose one selection one set of consequences will happen.
Else they choose the other selection another set of consequences will happen.
print("You spot a fierce rat in the center of the tunnel")
event1 = input("Press s to sneak by. Press t to throw stone at it")
if event1 == ("s"):
    print("Carefully you edge past")
else:
    print("You throw a stone at the rat and it runs off")

#Set up the encounter
#User makes  choice, leaves it inside #variable called event1.
#If event1 is same as s then it will #print Carefully you edge past
#Else any other letter is put inside #event1 variable then print You throw #a stone at the rat and it runs off.

I have purposely avoided detailed descriptions in this example so that it is easy to
understand. In your game I recommend that you make your descriptions detailed
to entice the player to continue reading/playing.
I also recommend that you use some sleep(3.0) commands to pause between print
commands in the same pathway for effect.
for example
if event1 == ("s"):
    print("Carefully you edge past")
    sleep(2.0)
    print("The rat turns its head towards you")


#2 second pause allows #for tension to build up