During the Time of Troubles (1358 DR), the gods were cast out of the Astral Sea and made to take mortal bodies so they could learn humility. During this time Mystra, the goddess of magic, was slain and where her body fell to Faerûn, the land was infused with mana and a human, by the name of Midnight, was raised to the status of godhood. The world is now crisscrossed with underground rivers of magic. Wherever these rivers cross, nodes of intense magic are formed. In the place where Mystra’s body fell is found the Mother Node, the main node, from which all magic flows.