Migrants of Multiple Earths Thesis: Part 9

As we previously considered, there were several migrants between the Earths One and Two, mostly biological but occasionally artificial life forms as well. This digitized duo involved the Flashes of two worlds and menacing mechanoids from far future eras.

When the malevolent Rotwang from a future century deemed it necessary to suppress a rebellion in his era, he calculated that changing the past would remove the rebel's leader Maria from the timeline. To that end, he reconstructed a robot whom he previously made in Maria's image, this second version being christened Mekanique, and sent her to the 20th century to alter the course of a key event that led to Maria's birth. This sinister synthoid arrived in 1942 and carried out her master's wishes, tricking the heroic team known as the All-Star Squadron into aiding her agenda. Following this, she was for a time an associate of the Squadron and a romantic companion to the All-Star named Robotman. Eventually, she sided with the heroes' arch-enemy Per Degaton, and together the pair attempted to eliminate the Squadron. When this failed, only her head with its temporary crystal remained, left in the possession of Degaton, while her body was destroyed.

Another mechanized man who journeyed across the dimensional barrier, in the reverse direction, was the sentry from the 64th Century which Flash brought with him from Earth-One as he tracked down his foe Abra Kadabra, now battling Earth-Two's Flash in Keystone City! This sentry was never shown as leaving Earth-Two, and it is assumed that Earth's Flash, Jay Garrick, tracked the wheeled sentry down and scrapped it for parts.

Shortly after the mechanized man arrived on Earth-Two, Per Degaton reassembled Mekanique's body while under the employ of former All-Star Hank "Commander Steel" Heywood, and sent her to Earth-One where Heywood himself migrated to. Both Steel and Mekanique battled the combined might of the Justice League, Justice Society and Infinity, Inc. in the League's Detroit headquarters on Earth-One, before the she-bot retreated into parts unknown.