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DC Extended Universe Wiki
DC Extended Universe Wiki

Aquaman: Undertow is a tie-in novel to Aquaman. It was published by HarperCollins on November 6, 2018.[1]


Thirteen-year-old Arthur Curry has enough troubles to sink a ship. His mom left him and his dad when Arthur was only three years old. He doesn't fit in with the other students at school. To them, he's just “fish boy,” a weird, freaky kid. But Arthur has a secret. Something so secret, even he doesn't know what it is.

With the help of his only friend, Claudia, Arthur will begin to learn the truth about his mother, himself, and a legendary world that may actually exist.

Oh, and he learns about octopuses. Octopi. It's probably octopi, right?[1]





Sentient species[]




Behind the Scenes[]

  • The novel and the companion book Aquaman: Arthur's Guide to Atlantis are the first to establish a direct affiliation between this version of Arthur Curry and Topo that precedes the events seen in the first film.
  • Certain contradictions arose between the book and Aquaman: Arthur's Guide to Atlantis. Some of them can be seen below:
    • The latter book established that Arthur was given the book The Mystery of Atlantis which he then drew and papered over and turned into his personal Guide to Atlantis scrapbook/annotated workbook. Although this is seemingly consistent with the text in Undertow, the illustration shown when first given the book already shows it in its transformed state rather than how it should look before Arthur modified its appearance.
    • The last part of the book shows Arthur saving two bullies with him discovering the power of breathing underwater for the first time. This is contradicted by Arthur's Guide to Atlantis which shows another moment that is supposedly his first moment of discovering his ability to breathe underwater.