Hello, SFF fans! SFF, as in “sci-fi and fantasy,” or “spring fling fun.” Because warmer weather is on the way, and April showers are bringing many amazing books to scrub our brains with SFF bubbles. You can read about many of them in this list of awesome new SFF books out in April 2025!
These stories include a ghostly Great Gatsby-adjacent fantasy; a Los Angeles librarian in the future trying to save the library’s African American collections; a historical romantasy involving a blacksmith and a merman; a coven of trans witches trying to take down evil artificial intelligence; a time-traveling psychic who uncovers a nefarious plot; and angels and vampires and mortals, oh my!
Now grab a healthy snack, fold your wings up tight, and get ready to add these great books to your TBR!
The Best New Science Fiction and Fantasy Books Out in April 2025
![]() This Monster of Mine by Shalini Abeysekara (Union Square & Co., April 1)This debut is a legal thriller and romantasy inspired by Ancient Rome! Four years ago, someone tried to murder Sarai and failed. Now she’s out for revenge, looking for the culprit by working as a prosecutor with a magical ability to tell if someone is lying. Sarai must investigate her case with one of the city’s four judges, Tetrarch Kadra, who has a reputation for cruelty—and is also a suspect in attacks similar to what happened to Sarai. She must walk a fine line, trying to get answers while not tipping Kadra off to the fact that she’s investigating him. And possibly also falling for him… |
![]() The Ephemera Collector by Stacy Nathaniel Jackson (Liveright, April 1)This exciting Afrofuturist debut (sadly) doesn’t sound too far off from reality. Xandria Anastasia Brown is a librarian in Los Angeles in 2035 who, along with AI helper bots, curates the African American Ephemera collection and American Historical Manuscripts. But long COVID has taken a toll on Xandria, and the lapses in her memory are getting worse. It makes it hard to work and to deal with the hostile corporate takeover attempt threatening the library. When the library goes into emergency lockdown, stranding Xandria in the archive, she realizes everything she has collected and everything she believes is under attack. |
![]() Where the Axe Is Buried by Ray Nayler (MCD, April 1)From the author of The Mountain in the Sea, winner of the 2023 Locus Award for Best First Novel, comes this technothriller! It’s set in the near future, where the authoritarian President has held on to his position by downloading himself to new bodies and Europe is governed by AI Prime Ministers. But technology is breaking down all around the globe, threatening everyone, and the scientist who could break the President’s hold on the country has to go on the run, where she discovers a worldwide group of revolutionaries who might be the world’s last hope. |
![]() Don’t Sleep with the Dead by Nghi Vo (Tordotcom, April 8)This is Nghi Vo’s fun companion novel to The Chosen and the Beautiful, a queer reimagining of The Great Gatsby from Jordan Baker’s point of view. This time, Nick Carraway is the Fitzgerald character leading the story. It’s twenty years after the events of The Great Gatsby, events that have haunted him. But now he may actually really be haunted by the past… |
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![]() Down in the Sea of Angels by Khan Wong (Angry Robot, April 22)This dystopian fantasy combines time travel and psychic abilities! In the early twenty-second century, on a planet ruined by climate change, an event called the Bloom gives a small percentage of the population psychic capabilities. One of those people, Maida Sun, can tell an object’s history through touch. This leads her to the lives of people in 2006 and 1906, and it uncovers a government plot to get rid of everyone like her. |
![]() When the Tides Held the Moon by Venessa Vida Kelley (Erewhon Books, April 29)And this is a queer historical cozy fantasy about a Puerto Rican immigrant and a merman. In 1910s New York City, Benny is hired to build a new tank for a Coney Island amusement park. It’s the home of Rio, an actual merman stolen from the East River. As Benny spends time with Rio and getting to know his gentle soul and kind heart, he realizes he has met his soulmate. But his love with Rio will mean setting him free, which may cost Benny his job, his family, and the merman he loves. |
![]() Awakened by A.E. Osworth (Grand Central Publishing, April 29)Here is another exciting sci-fi novel that explores the dangers of AI (which has already become too real.) In Awakened, Wilder wakes up in Brooklyn one morning and discovers they understand every language in the world. This leads them to a small coven of trans witches, all with their own awakened abilities. When their world comes under threat from an evil artificial intelligence, they will have to use their powers to stop it. |
The Best New Children’s and YA Science Fiction and Fantasy Books Out in April 2025
![]() Where Shadows Meet by Patrice Caldwell (Wednesday Books, April 1)Angels, vampires, and mortals are fighting for love in this debut Black sapphic vampire YA fantasy! There’s an angel who was betrayed by the goddess she loved and made a monster, who now waits for her chance to get revenge. And there’s the princess of a vampire nation who travels to the island of the dead to rescue her friend, a mission that threatens to destroy her the closer she gets. It all adds up to a monster of a good time. |
![]() Hyo the Hellmaker by Mina Ikemoto Ghosh (Scholastic Press, April 15)Need to ruin your enemies and spoil all their fun? Hire a hellmaker, who can create customized hells on earth for them. Hyo is one such hellmaker, who has had to flee her village after a demon attack and has been cursed to avenge the deaths she encounters. But these deaths are suspicious, and as Hyo investigates, she uncovers a plot that involves the gods, and she might be the only one who can stop it. This high fantasy YA debut is also illustrated throughout by the author! |
![]() Dreamslinger by Graci Kim (Disney Hyperion, April 29)This is the first book in a new middle grade fantasy series from NYT bestselling author Graci Kim! Aria Loveridge is a Dreamslinger, which means she visits a faraway fantasy realm in her sleep. She lives at a home for Dreamslingers, where they can be watched over, since their powers can become dangerous, like when the League of Dreamslingers caused the deaths of hundreds, including Aria’s mom. So when the League announces a new competition, Aria joins in the hopes of learning what really happened that day and dismantling the League from the inside. |
![]() The Floating World by Axie Oh (Feiwel & Friends, April 29)This YA romantasy reimagines the Korean legend of Celestial Maidens. A soldier who lives in perpetual darkness, waiting to find the one who brings light, crosses paths with an acrobat looking to find a cure for her dying uncle. Ren’s uncle was injured in a demon attack, in which Ren killed the monster using powers she didn’t know she had. As she brings her uncle across the mountains in search of help, she meets Sunho, the soldier, who offers to help. But neither know the other’s secret, and as their journey brings them closer together, the truth will have thunderous consequences. |
Bonus New Science Fiction and Fantasy Books Out in April 2025

Because I can’t just stop at 11 books: In April, be sure to also watch for Gifted & Talented by Olivie Blake, The Raven Scholar by Antonia Hodgson, The Seven O’Clock Club by Amelia Ireland, and Tales from Beyond the Rainbow: Ten LGBTQ+ Fairy Tales Proudly Reclaimed by Pete Jordi Wood.
There are also a bunch of amazing sci-fi and fantasy titles out in paperback this month, including Someone You Can Build A Nest In by John Wiswell, Rakesfall by Vajra Chandrasekera, The Book of Doors by Gareth Brown, and The Girl Who Fell Beneath the Sea by Axie Oh.

And don’t forget the sequels! Amazing continuations of great stories are hitting the shelves, like A Drop of Corruption (An Ana and Din Mystery) by Robert Jackson Bennett, The Butcher’s Masquerade (Dungeon Crawler Carl) by Matt Dinniman, Faithbreaker (Fallen Gods) by Hannah Kaner, One Way Witch by Nnedi Okorafor, and The Ashfire King (The Sandsea Trilogy) by Chelsea Abdullah.
If you want to learn about more sci-fi and fantasy books, check out The Best Standalone Fantasies to Read Right Now and Time Loop Romances to Get Stuck In. And be sure to sign up for our SFF newsletter, Swords and Spaceships!
Finally, you can also find a full list of new releases in the magical New Release Index, carefully curated by your favorite Book Riot editors, organized by genre and release date.