Dark
If the sun starts to make a sound, you know it's about to go dark. The sun isn't supposed to make a sound, so if you can hear it, it's probably about to fizzle out or something. After it's gone, obviously everything will be pitch black. Get ready to be in the dark!
あん
くら, くれ
None
Now wandering around your house in the dark you start to feel hungry, so you reach blindly for some food and take a bite. Yuck! It's anchovies (あん). You don't even like anchovies, how did they get in your house? Hmm… Dark forces are at work here…