we are the ones that dwell within
watching and waiting for the end
in the dark we witness your sin
we are the ones that dwell within
that burn you feel under your skin
the edge of madness at the bend
we are the ones that dwell within
watching and waiting for the end

I enjoyed creating a triolet earlier this week for the w3 prompt, so I did it again. But this time I went with the 8-syllable version and leaned into the SPOOKY. Thanks for the added inspiration to Esther (EDGE) and dVerse poets (we are the ones that dwell within). See below for info on Triolets.
According to Sarah Whiley …
A Triolet is an 8-line poem where lines repeat in a beautiful rhythm:
Lines 1, 4, and 7 are the same, and lines 2 and 8 are also repeated.
The rhyme scheme looks like this: ABaAabAB (uppercase = repeated lines).
If you’d like to make it a little trickier, try writing each line with 8 syllables (iambic tetrameter, the classic French style) — or challenge yourself with 10 syllables per line (the English version).