|Oligarchs||Nylian and Stheno|
|Patron||Sartan, the Malevolent|
|Founder||Jurixe S. Nithilar, Carmain Nithilar, Orzaansyn I'llur|
|House Tutor||Vyrae, the Crimson Demise|
|Heraldric Arms||Argent, a spider in chief Sable and three pillars Azure|
Stalwart guardians of Mhaldorian cultural superiority, the Insidium seeks to bolster internal advancement while eradicating heathen lies in their quest to spread the Truths. Those who seek this route understand that subtle, long-term strategies produce the greatest rewards, consciously choosing to take deliberate actions in the present with a view to bringing civilisation one step closer to achieving true Strength.
Calling all of Evil's ambitious thinkers and doers, these visionaries are masters of quiet subversion, careful suggestion, and gradual influence, using any means at their disposal to awaken the masses to the glory of Evil. Creativity, commitment, and change unite the servants of the Insidium, along with one golden rule: the true reward is not in winning the battle, but the war.
The Insidium was founded in 668 AF by Jurixe S. Nithilar, Carmain Nithilar, and Orzaansyn I'llur.
- 668 AF - Lord Sartan became the Patron of the the Insidium.
Leadership - Insid'atori
- 668 AF - Jurixe S. Nithilar becomes the first High Ascendant.
- 671 AF - Ulrike Dracrotalus replaces Jurixe as High Ascendant.
- 698 AF - Carmain Nithilar replaces Ulrike as High Ascendant (and changes the title of the ascendant to Insid'atori)
- 699 AF - Saeva Aristata replaces Carmain as Insid'atori
- 711 AF - Nocroth dis Serenath replaces Saeva as Insid'atori
- 718 AF - Ysela replaces Nocroth as Insid'atori
- 748 AF - Kythra replaces Ysela as Insid'atori
- 751 AF - Mariya replaces Kythra as Insid'atori
- 760 AF - Kiet replaces Mariya as Insid'atori
- 778 AF - Eoka replaces Kiet as Insid'atori
- 793 AF - Orzaansyn replaces Eoka as Insid'atori
- 805 AF - Nylian replaces Orzaansyn as Insid'atori
- 815 AF - Zackery replaces Nylian as Insid'atori
- 703 AF - Ainly becomes an Insid'ari
- 703 AF - Kitiara becomes an Insid'ari
- 707 AF - Ysela becomes an Insid'ari
- 707 AF - Kiet replaces Ainly as Insid'ari
- 718 AF - Carmain replaces Kiet as Insid'ari
- 724 AF - Helewys becomes an Insid'ari
- 729 AF - Aegoth becomes an Insid'ari
- 732 AF - Alrena becomes an Insid'ari
- 740 AF - Mariya becomes an Insid'ari
- 743 AF - Kythra becomes an Insid'ari
- 748 AF - Seortiae becomes an Insid'ari
- 751 AF - Kiet becomes an Insid'ari
- 757 AF - Zackery replaces Seortiae as Insid'ari
- 765 AF - Melodie becomes an Insid'ari
- 765 AF - Harmonia replaces Mariya as Insid'ari
- 768 AF - Mathonwy replaces Zackery as Insid'ari
- 769 AF - Eoka replaces Harmonia as Insid'ari
- 778 AF - Mariya replaces Eoka as Insid'ari
- 793 AF - Seortiae becomes an Insid'ari
- 793 AF - Ellryn becomes an Insid'ari
- 793 AF - Melodie becomes an Insid'ari
- 793 AF - Ailea becomes an Insid'ari
- 805 AF - Stheno becomes an Insid'ari
- 812 AF - Zackery replaces Ailea as Insid'ari
- 815 AF - Nylian replaces Zackery as Insid'ari
Denethor, the cursed acolyte resided within the House estate before Vyrae replaced him as House tutor in 758 AF.
Iovita resides in the House Estate, selling wares for the Insidium. She is granddaughter of Skaadi, Ritualist of the Insidium.
Skaadi, Ritualist of the Insidium resides within the House estate and is the ritualist in charge of performing a ceremony for full members of the House.