The book of lord T
Your first task on day 2 is to spend some time reading from the book you received from the Deneirrath. The book is a tome of history from the library in Phlan describing some of the long and sordid history of Lord T. It turns out Lord T's full name is Tyranthraxus, called the Flamed One by those who knew and feared him. Tyranthraxus was one of five of the dark god Bane's mightiest generals in the Moonsea area over 400 years ago. So great was his cruelty and ambition that he slew his four rivals and took command of all of the human and humanoid forces that had flocked to the black banner of Bane in that time. Eventually Tyranthraxus was slain in battle, but only his mortal body met its end; his essence had taken the form of an outsider with powers great and terrible to behold. The fire and lightning he wielded burnt the flesh and drained the souls of all who opposed him.
In 1075 DR the wizard Baron Schodt captured Tyranthraxus and held his essence in a vial of holy water consecrated to Lathander, but he could not destroy the essence fully. Within the pages is a passage taken from one of Schodt's spellbooks:
The essence must be taken to the last place of power. There the helm of the wyrms will find him, the sign of the beginning will be the beginning of his end, and the hand of the endings will end him.
The head librarian's notes follow.
the helm of wyrms is the only thing of these three I understand. It is a powerful divinatory device that I last knew was in the hands of Red Wizards of Thay. He needed to other items in order to destroy T's essence, but what are they? And where is this place of power he mentions?