This is a pretty simple quest. Simply kill 9 Redeemed mobs.
Thanks to the following for making this possible: Charlee, Garfein, Flozene, Schwad, Vannie and Xirdy!!You can get the quest from Garboil Hes Mord. You will find him in the shrub maze in the Inferno Garden. (North of save) I won't go into detail on where the mobs are, I'll asume you know your way around by now.
The 9 mobs you have to kill are:
1. Kuir-Afat, The Custodian. (These are the guys you kill for Shadowbreeds, in the Penumbra Dungeon, by Blue Mist)
2. Acolyte Gal Bela. (Just inside inferno portal, head east to 1090x340, close to the +10 ring dungeon)
3. Sipius Gal Jha-Hume. (The Redeemed Village north of Razor's lair, on the way to Redeemed faction Temple.)
4. Kuir-Afat, The Custodian. (These are the guys you kill for Shadowbreeds, in the Penumbra Dungeon, by Blue Mist) Yes again.

5. Suir-Afat, The Custodian. (At 'Sorrow'. He's deep in the village on the podium.)
6. Suir-Shelet, The Custodian. (Also at 'Sorrow'. He's a little easier to get to, on the South East side of the village)
7. Venerable Ecclesiast Gal Bala. (In the redeemed temple. Bring your insignias, it's faction time!! /tell aurbot -join)
8. Empath Sir Gawain. (If you've done the Penumbra Sanctuary Quest, I bet you can guess the ending!)
9. Redeemed Lord Galahad. (This is the 9th and final mob.)
When you kill Galahad you get your key, and another box of nano crystals. Everyone I did this with got the same exact nano as the Garden Quest. Sorry to ruin it for you ahead of time. Grats to all those that get their Key.
See you on the SK teams!!
Salashan