Purchase
THE POTENCY OF UNGOVERNABLE IMPULSES
By: Malka Older
The Investigations of Mossa and Pleiti
Tor Books
June 2025
On Sale: June 10, 2025
256 pages
ISBN: 1250396069
EAN: 9781250396068
Kindle: B0DDJDJKJS
Hardcover / e-Book
Add to Wish List
LGBTQ | Science Fiction Space Opera
A brand-new entry in the Hugo, Nebula, and Ignyte Award-nominated sapphic, cozy space-opera mystery series The Investigations of Mossa and Pleiti, which Charlie Jane Anders calls "an utter triumph."
When a former classmate begs Pleiti for help on behalf of her cousin—who’s up for a prestigious academic position at a rival Jovian university but has been accused of plagiarism on the eve of her defense—Pleiti agrees to investigate the matter.
Even if she has to do it without Mossa, her partner in more ways than one. Even if she’s still reeling from Mossa’s sudden isolation and bewildering rejection.
Yet what appears to be a case of an attempted reputational smearing devolves into something decidedly more dangerous—and possibly deadly.
The Investigations of Mossa and Pleiti THE MIMICKING OF KNOWN SUCCESSES
#1.0
โข March 2023
 THE IMPOSITION OF UNNECESSARY OBSTACLES
#2.0
โข February 2024
 THE POTENCY OF UNGOVERNABLE IMPULSES
#3.0
โข June 2025
| 
© 2003-2026