I've tried getting the candle to drop from the Shadowy Supplier but no luck yet (have gotten the blood and the heart though). My question about the candle is: Is it bound or not? I haven't seen any on the traders.
The light and shadow candle is bind on pick up, it also drops from the "something to make me less noticeable" option. I had gotten 3 before I got the candles of silence (which i was aiming for) so sometimes its just a matter of being persistent and praying to RNGeeus
...sometimes its just a matter of being persistent and praying to RNGeeus
Good luck.
I rolled 7 other characters and got their Dark Brotherhood Faction Rank to 4, just so that I would have 8 attempts each day.
Even with that, Ive only managed about 25'ish of the candles.