Deeper Inland We Go

We sheltered for two days in the lizardfolk village through the rain. The accommodations were nice. The magic locker unlocked during our stay, and in it we found a spellbook of a level 12 transmutation wizard. Himo now carries the box.
 
We set out in our general north eastly heading. The morning was relatively calm, although I found a potion in an old shelter just before lunch. After lunch, we ran into a shambling mound by a creek. It tried to eat Mule, but we saved him. We moved on and made decent maps as we progressed. We set camp in higher ground at a river bend. In the middle of the night we were awoke to a spirit bound in the middle of camp, who was then killed by a spirit of a Yuan-Ti. They dissipated and we eventually went back to sleep. Several of us had nightmares later where any red items we touched turned orange, with a malicious connotations.
 
We set off the next day refreshed but struggled with mapping. It made for a slow day and we moved north to get above the low valley. We camped for the night and I noted a disturbance, which Umlilo figured was someone scrying us.
 
The next day, mapping went well. We found a few items of note, including a cave of blue quartz and a well worn trail up to our intended target, with villages in the trees. The following day brought us to the first of the codicils. We had a hard time finding it though, in that we couldn't, even when I borrowed the flying carpet and flew up. So we moved down to the ruined village, where Himo rang a bell and a massive bridge rose out of the lake and led to another codicil among a stone city.
 
Apparently it's an academy of some sort, as we were stopped by a trio of Gynosphinxs. After a parlay, we were granted access and led by one of the Gynosphinx to the city. We were introduced to Brother Douglas for accommodations. We find inside the academy codicils for Cavaliers and Vengeance paladins. After speaking to Brother Douglas of our needs, he led us to some form of teleportation chamber and took us to the bladesinger codicil.
 
All the codicils are controlled by the Sphinx's. They are open to anyone who follows the forms and rules. The cost is 1000gp or 1 year of service per week of study. We met the heads of the mage towers, including the owner of the spellbook we found. Then, after the disclosure of the Horizon Walker 5 codicil, we were granted learning for Geode and Obin at their codicil.