"Assault on Titans' Tower"
First appearance of Elinore Stone.
The story also includes the blueprints for Titans' Tower.
*The Fearsome Five return to free Psimon from his extra-dimensional banishment by Trigon and attempt to take over Titans' Tower in order to lure the Teen Titans into a trap. The heroes are stymied when Doctor Light holds Cyborg's father, Silas Stone, hostage, and professor Stone is revealed as the creator of the new Titans headquarters. Then the last minute intervention of Wonder Girl frees Stone and the Titans revive to defeat the Fearsome Five. In the aftermath of battle, professor Stone is finally able to reveal to Cyborg the secret of his creation and that the elder Stone is slowly dying of radiation poisoning from the same accident. Over the next two months until Silas Stone's inevitable death, father and son are reunited and reconciled at last. *Source: Official Teen Titans Index #3 - Published by ICG