Once a Villain by. Vanessa Len | ARC Review – Past Midnight Book Reviews & More

My Rating: ⭐️⭐️⭐️💫

Spice Rating:

Title: Once a Villain (Monsters, #3)

Author: Vanessa Len

Format: eBook (NetGalley)

Pages: 416

Publication Date: 8/19/25

Publisher: HarperTeen

Categories: Series, Fantasy, Romance, Young Adult, Time Travel, LGBT+

Disclaimer: **I received this book free from NetGalley in exchange for an honest review. All thoughts and opinions are my own.**

Thank you to HarperTeen for giving me a chance to read this eARC in exchange for an honest review!

The finale in the contemporary fantasy Only a Monster trilogy from Vanessa Len—which New York Times bestselling authors Holly Black, Chloe Gong, and Stephanie Garber called “delightful,” “captivating,” and “unputdownable”—will take Joan into the darkest timeline in the monster world, as she fights to restore the world she remembers.

Joan has failed to stop Eleanor.

Now, Eleanor rules over a cruel new timeline where monsters live openly among humans, preying on them and subjugating them.

Nick – once a hero to humans, and Joan’s first love – is tormented by the choice he made to save her over the timeline itself. And Aaron – the ruthless heir to a powerful monster family – now finds himself a world where monsters have power beyond imagining, while his feelings for Joan grow.

But, wrenched between love and rivalry, the three of them must negotiate their fractured pasts to survive the new world and restore what was lost. Because only they remember that there was once a better timeline.

To save the world they love, they’ll have to outmaneuver an all-seeing queen who controls time itself. Lethal consequences await any failure in this final breathless race against time.

Content Warning: violence

+ This is the conclusion to the Monsters series and we jump right into the story after all the events that happened in book two. Like the previous books, this story moves quickly, which I like! There are now in the timeline that Joan’s sister, Eleanor, has created and it’s a messed up timeline. Eleanor is Queen but there is electric cars and technology in a time that seems like it’s the 1600’s – so Joan and her friends have a goal to take down Eleanor and fix the timeline.

+ The found family of their friend group is back minus Tom but he reappears later in the story.

+ I always wanted more of Aaron Oliver in this series and it happens in this third book. He takes more of a roll since he’s the head of the family in this timeline.

+ There are some twists I was not expecting in this story and actually made my jaw drop because they kept happening one after the other in the last half of the book. But overall, I think most questions were answered and this was a solid conclusion!

~ It turned into a love triangle and one that was frustrating! Some things happen and immediately Joan is turning from one boy to another and I wasn’t happy with that. But things are resolved by the end of the story, not sure how I feel about it but all parties were happy so that’s what matters.

~ The ending is wild! There was one thing happening after the other at the end, and some of it felt rushed.

Final Thoughts:

This was a great conclusion to the series and I think most people who love the series should be happy with it. I like the fast moving pace, and having more of Aaron in this book. I think there were some parts in the end that moved too fast and it felt rushed but the twists did surprise me. Overall, I think this series was entertaining!