Sigil numbers are the numbers assigned to pieces of the HTDA discography in the order that they are released, in the stye of Nine Inch Nails' "Halo numbers".
Sigils
| Halo # | Name | Release Year | Album Type | Description | Find It |
|---|---|---|---|---|---|
| 01 | A Drowning | 2010 | Single | First HTDA single, available as download only and does not carry "Sigil 1" in the file information. | |
| 02 | How To Destroy Angels | 2010 | EP | First HTDA EP. |