Results of the rest of the commune (from chat) + knowledge rolls:
-Talsia deduces that the Shackled Spirit of the Sandy Wastes is probably the spirit of the desert
What were the children sacrificed for?
-The Ritual Of Infernal Death
--Its a ritual dedicated to one of the Lords of Hell, as are all the Infernal Rituals, but you don't know anything about the specifics
What type of material does a weapon have to be made up of to fully damage creatures like the transformed soldier we fought yesterday?
-The Material Is Irrelevant
Who sent the transformed soldier that we defeated yesterday after us?
-I cannot see the sender
Should we happen to recover the sword, who do you think it would be wisest to give to?
-Any that should be
Who are the ambushers?
-Kittanezer and her minions
I open my mind to you, what do you think would be the most useful prayer i can prepare for the combat with the silver fiend and ambushers, barring a miracle.
-Banishment
About how much time would we have after attacking the silver fiend before the ambushers would arrive?
-None
What is the most potent weapon or spell Kittanezer and her minions have available to use against us in battle?
-Deceit
"What is the most useful advice, assuming we plan to go through our quest, that you can give me to help prepare us for the following day?"
-You already know Kittanezer
then
Divination: "What will happen if/when we attack the silver fiend?"
"From beneath the fiend will come, 'ware the word to smite the holy"
then
Augury: Action being trusting both of those people who we perceive as the bronze wyrmling (or whatever age category it was) and Thol
-Weal and Woe