The Yomi page on the other hand is a random drop off the Adonis catacomb bosses. Those bosses are roughly level 210, so soloing there is not for the faint of heart.
The first Unredeemed to talk to is the Hypnagogic Ixi-Lum Van. He's the temple's librarian, and can be found in the 100% suppression gas western side room, before its very core.
For the ones among us interested in the reason why you had to take a hold of a Yomi page, feel free to have a quick chat with him. If you're more interested in getting this all done and over with, it's okay to just trade him said page. In return, he will hand you a Book of Insignificant Rituals, and ask you to deliver it to the Prophet Urga Van.
Taken from /tell budanet !aou 284 and /tell budanet !guides penguide, respectively.1. Head to the Adonis Catacombs, and with a raid team, farm 'A Page From The Yomi Grimoire' off of the Yomi Grimoire and the other boss mobs in that dungeon.
2. Once you have a page give it to 'Hypnagogic Ixi-Lum Van' in the Penumbra north east Unredeemed temple. He will give you the Book of insignificant rituals.
3. Give the book of insignifcant rituals to Prophet Nar Van, and he will spawn Vanya. Note that Vanya spawns in the 75% room, so be carefull if there are Clanners around. Unredeemed Vanya gives awesome faction for the Clanners and they won't think twice about killing it.
Ignoring the contents of those excerpts (since they are not giving the exact same information) and focusing solely on the format, I think the second version is a lot clearer to follow, and if you have to look away it's easy to resume where you left off since the numbers are good visual markers.