Born in the Overlander city of Mega Central, Abraham Tower later relocated with his parents, who were scientists, to Space Colony ARK, where he met and befriended Maria Robotnik. He also witnessed the creation of Shadow the Hedgehog, a horrifying experience for the young child. Abraham and his family were returned to Mobius shortly thereafter as the ARK was placed under military lockdown, and Maria perished as a result. Tower grieved for his friend, and blamed both the Guardian Units of the Nation, or G.U.N., as well as Shadow for the tragic events. As he matured, Tower joined the Overland Military, and became involved in the Heritage Project, an effort to reunite the Overland with their distant Human cousins in the United Federation.