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Baby Bat: The Gotham Years by Totter4
Fandoms: Harry Potter - J. K. Rowling, Batman - All Media Types, Batman (Comics)
16 Nov 2025
Tags
Summary
Wayne Manor is thrown into turmoil when Bruce Wayne unexpectedly acquires a third child—one with no records, no family, and a past she refuses to explain. Bruce, Alfred, Jason, and Dick must navigate the impossible task of raising Mia, a three-year-old who mistrusts everyone, resists every routine, and clings to strange habits that make no sense in their world. The Batcave can handle assassins and arsonists, but tantrums, nightmares, and sparkly boots test even Gotham’s Dark Knight.
But before she was Mia Wayne, she was Euphemia Black—the hidden daughter of Sirius Black and cousin to Harry Potter. Now stranded in the Muggle world, Mia carries grief too big for her small body: the death of her mother, the loss of James and Lily Potter, and the disappearance of her father. Magic lingers at her fingertips, a secret she cannot reveal, even as she struggles to live without it.
Caught between two worlds, Mia must survive in a house of strangers who desperately want to be her family, even when she insists they are not. And Bruce—who knows everything about fear but nothing about bedtime stories—must protect a child who doesn’t believe she’s safe, and may never learn how to be.
Series
- Part 1 of Baby Bat