Hello!
I am currently growing a faction of Horus-Re worshippers, the Claws of the Sun and the Ankh, Arelith Chapter, and we are very open to new characters/players rolling up concepts to join us.
The lore that your character should be aware of if you're interested in making (or already have) a character that would know any Mulhorandi lore, is that they are one of the first and only orders of Mulhorandi Paladins that are not dedicated to Osiris, but to the chief of the pantheon, Horus-Re, and they devote themselves fanatically to hunting down followers of Set (and in the Arelith Chapter, other evils as well, which we can explain more flavorful reasons for ICly). The Arelith Chapter welcome non-paladins to serve and aid their Holy mission, but you must worship one of the Mulhorandi deities - ideally Horus-Re. Horus-Re is not required (originally this post said it was, but that's changing a bit since that's a little too restrictive), but venerating Horus-Re in addition to your own Mulhorandi God, is mandatory, since Horus-Re is the patron of the order and chief of the Pantheon.
There is plenty of stuff we're already doing and involved with, and we have several members already, so if you like ancient Egyptian themed RP and flavor, and are interested in Mulhorandi stuff and a new type of goodly faction, feel free to post here or otherwise contact me OOC to discuss your concept if you want to mesh with us from the get-go. Otherwise, feel free to meet up IC and hang out with us or join us 
Praise the Sun!