Benedetto Betarrini

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Father of Gabi and Lia. While he was alive he was a well-known archeologist. Lots of his colleagues came to his funeral when he died. It appears he has died before Waterfall starts. The cause is unknown until it is mentioned that he died in a car accident in Cascade.

After realizing they can travel through time they rescue their father and bring him back with them. He then travels back with Gabi, Lia, and their mother at the start of Torrent. Due to not knowing the state of the future anymore now that they've changed it they stay.

Deluge

Ben later dies at the end of Deluge from the Black Plague. His death leaves both of his daughters heartbroken, but especially Lia, who also mourns the time that he didn't get and the happy moments he missed. These moments include him with Lia's daughter, Tiliani, with whom he did not get to spend time because she had not yet been born

Relationships
Gabi and Lia Daughters

Dr. Adri Betarrini She becomes very distraught over his death the first time around and throws herself into her work.