Apartment 5: Just A Thought

Timmy's in the water, staring ahead, silent. It's quiet in Tracey's apartment: it's quiet everywhere now the scream has gone.
A strange thought ripples through Tracey's head: can you see a scream? Which is odd, because while Tracey discounts the thought as a product of being startled, Timmy sees the scream clinging to the bathroom wall...

It's not like toyboxes, or Duplo, or crayons. It's like alive things, but without colour and you can't feel it if you touch it. But you can touch it.

He watches it move around the bathroom then disappear through the wall into Apartment 6.