Investigating Tirasa

The party remains within the city walls of Tirasa. A search for the Tabaxi turned up no results. But a return to dainarv's Oddities and Fox's Armory led to purchases of new items. You have received word from your Drow ally, Billy West.  What would you like to do?
At the Abraxios academy: Ukko finds them at the lobby. Reunites with them. and pushes his way in to the school.
They meet Cornwallis who will answer any and all questions they have. Researchers and scholars have deduced that an artifact on the material plane must be at the cliffs of Lommond. They only recently uncovered some documents stating that a Cult of Tharizdun, being pursued by a batallion of Paladins, rushed to hide the artifact they had in their possession by delving into the underground cairns of the cliffsite and hiding it somewhere within its depths. With the soldiers closing in, They were apparently successful as the Paladins arrived soon after wiped them out and weren't able to locate the artifact afterward. So somewhere down in those deathly silent halls lies one of the artifacts You seek.
They have come across a wealth of knowledge this past few years. He informs them that they are not the only ones who came asking. Other people have paid for research purposes and materials. He is mum about who it is.

Worship of the being didn't begin until about 5,000 years ago. No one knows what event led to his worship but it might have been a gathering of strength of will of the mad god

Many worshippers are fooled into serving Tharizdun as leaders refer to it as different names to dupe followers into thinking they are following a completely different deity all together.

Noted historical sources have heard mention it referred to as the "Angel of Irons", "The Elder", "Zundithar" or "Zundirath"

Followers are tasked with returning the Mad god to this realm thru acts of "Enlightenement" Which include things like ritual sacrifice, murder, or sometimes mass genocide. All in a bid to return The mad god, or at least his essence to the material plane.

DC18 Persuasion/Decption Check to Find out who it is
DC15 Intimidation check to find out who it is.
If they get it out of him, they find out the people came from Melduinn, Mount cashell, and Antrim. They have been asking for research into the Ancient god of madness with particular emphasis on rituals and the artifacts.
Before they leave the city, They are attacked by Assassins. Encounter Party VS. 2x Assassins
The Party leaves Tirasa
To head to Mount Cashell, Melduinn, or the Cliffs.
On their route, Kobold Encounter. Vampire Kid Encounter