Okay, hear me out...

Epic AU where Siren Penelope wasn't lying/confused when she said "Come play with me and our daughter." It's not completely out of the realm of possibilities, since Telemachus was already born, and I'm sure Ody and Penelope were... Intimate... Many times before he went off to war, since, in reality, they weren't sure he was ever coming back. Hence the AU of, she got pregnant, but didn't know, obviously, until after he already left, and she ended up having a daughter that Ody knew nothing about. Just saying 🤷🏼‍♀️