The Time of the Seven Seals.

It was only inevitable that the Tower became something more than it used to be. Attracting many promising arcanists, some of them took keen interest in Thoraminds study and research and seeked to took advantage of it. Led by a sorcerer Halen Van, a group of arcanists took control of the Tower, leaving Thoramind to mere administration duties.

The group expanded the Tower, the high peak of the Tower now expanding high above the Forest of Despair, turning the Tower from single-hall structure into multi-layered nexus of arcane art. Halen Van, together with Shane Gramble and Zoral Baenre, a drow, formed the first Conclave of the Arcane Tower and became the first archmages of the Tower. The Council also founded the Arcane Tower Library and built the rooms for the High Teachers.

Archmage Thoramind continued his studies of wild magic, and with the new library, he experimented on his befriended Gnome in an attempt to create a spell that allows an arcanist to quickly absorb knowledge from the books. The experiment, in its failure, created a being of Aniseph, the Gnomes soul was bound to many books in the library, jumping from book to book and unable to ever return to who he was. The creature speaks in riddles and rarely appears to anyone but the Conclave, Aniseph is also the guardian of the library and rumoured to be in symbiosis with the library itself.

During the early days of conflicts that later led to outburst of surface-drow war, war which resulted in many drow being killed and chased from the surface, so did the Conclave slowly fall apart. With Archmage Zoral Baenre leaving, Halen Van passed on to the Outer Planes and Archmage Shane Gramble began seeking greater knowledge in the furthest reaches of Arelith and the Abyss. The Tower fell silent, giving an opportune moment that would forever change what the structure stands for.