The Books

Chelsea writes contemporary fantasy and urban fantasy. It’s gritty, it’s character driven, and it’s got serious sexual tension. (You’re welcome.) Her Soul Charmer series featuring Callie Delgado as a reluctant repo-woman for rented souls begins with Borrowed Souls, which is out now.

Find current and upcoming releases below, in series order.

Borrowed Souls by Chelsea Mueller (Soul Charmer #1)BORROWED SOULS (Soul Charmer #1)

A young woman with a brother who can’t stay out of trouble dives head first into the grimy world of soul renting in this action-packed and sexy urban fantasy debut.

Callie Delgado always puts family first, and unfortunately her brother knows it. She’s emptied her savings, lost work, and spilled countless tears trying to keep him out of trouble, but now he’s in deeper than ever, and his debt is on Callie’s head. She’s given a choice: do some dirty work for the mob, or have her brother returned to her in tiny pieces.

Renting souls is big business for the religious population of Gem City. Those looking to take part in immoral—or even illegal—activity can borrow someone else’s soul, for a price, and sin without consequence.

To save her brother, Callie needs a borrowed soul, but she doesn’t have anywhere near the money to pay for it. The slimy Soul Charmer is willing to barter, but accepting his offer will force Callie into a dangerous world of magic she isn’t ready for.

With the help of the guarded but undeniably attractive Derek—whose allegiance to the Charmer wavers as his connection to Callie grows—she’ll have to walk a tight line, avoid pissing off the bad guys, all while struggling to determine what her loyalty to her family’s really worth.

Losing her brother isn’t an option. Losing her soul? Maybe.


Borrowed Souls: A Soul Charmer Novel

Borrowed Souls is out now!

Buy Borrowed Souls on Amazon


Also Available at: Barnes & Noble | Book Depository | Murder by the BookBooks-a-Million | IndieBound | iBooks


Rogue Souls by Chelsea Mueller (Soul Charmer #2)ROGUE SOULS (Soul Charmer #2)

Get ready for more magic, murder, and rented souls in the Soul Charmer series, which Booklist calls a “fresh take” on urban fantasy. 

Callie Delgado volunteered to apprentice to Gem City’s Soul Charmer. He’d forced the soul magic ability into her, but now it was hers. She’d learn to control her body’s reaction to rented souls or go up in flames. Literally.

She exchanged her chance to escape the darker side of Gem City to save her brother. Now she needs to keep him sober and safe, try to mend family ties, and avoid the mobsters who have too much interest in the magic of borrowing souls.

But when bodies begin dropping at the Soul Charmer’s door, it’s up to Callie and her partner Derek to track down the person killing soul renters. The Charmer wants retribution, but Callie is determined to get justice even if it means putting herself directly in the sights of the murderer.

If she wants to stay on the Soul Charmer’s good side, Callie must confront her enemies head-on and learn to command rogue souls…and hope someone she loves doesn’t become the next victim.


Rogue Souls is out now!
Order Rogue Souls at Amazon | Add Rogue Souls on Goodreads

COMING FEB. 25, 2019!

Lost Souls by Chelsea Mueller (Soul Charmer #3) - Coming Feb. 25, 2019!LOST SOULS (Soul Charmer #3)

Get out of Hell free card? Not for Callie Delgado, Gem City’s newest soul charmer. Sin and salvation collide in this gritty and action-packed urban fantasy. 

Callie’s magic is finally her own. She and Derek dispatched Ford. They should have been able to breathe, but layers of sin run deep beneath Gem City. Another mob boss quickly rises, and his sights are firmly set on Callie—and her family.

Mobile soul rental shops begin to bite at the Soul Charmer’s business. His retribution is wicked, but the blowback threatens to crush Callie. If she can’t maintain the tenuous balance of souls in Gem City, more lives will be lost.

Only the more magic she uses, the more danger finds her. A break-in, pools of blood, and bare shelves at the Soul Charmer’s store force Callie to choose the fates of others.

But which can she live with? Losing her city, her love, her family …or her very soul?

Lost Souls will release on February 25, 2019!
Add Lost Souls on Goodreads


“The first book in an already promising series . . . Borrowed Souls combines classic and modern fantasy elements in a fresh take on the genre; readers who like dark worlds and compelling heroines will enjoy this smooth read.”


“Chelsea Mueller’s BORROWED SOULS is do not miss, fantastic urban fantasy featuring a unique world and complicated characters.”

Lauren Dane

New York Times & USA Today Bestselling Author

“Mueller’s debut will leave readers reaching for the sequel. Gritty realism, pitch perfect characters and a heavy dose of red hot sex. What more could you ask for?”

Shannon Mayer

Bestselling Author of the Rylee Adamson Series

“This is a terrific world with an unlikely heroine, quiet and determined, with a pure heart and fiery will to protect her family. The hero, Derek, is big, tough, morally ambiguous and utterly delicious.
I think this is the start to a fabulous new series. Definitely recommend!”
Jeffe Kennedy

Author of the Mark of the Tala Series

“Gripping…BORROWED SOULS sucked me in from the very first page and didn’t let go.”

JC Daniels

Author of the Colbana Files

“The perfect urban fantasy cocktail. Spectacular world-building and a badass heroine.”

Shawntelle Madison

Author of COVETED

“Snappy, snarky, and oh-so-sexy, Borrowed Souls is one for the keeper shelf! It’s the stellar writing and sharp storytelling that makes this book a standout hit. Trust me, one-click the heck outta this s#*T!”

Darynda Jones

New York Times Bestselling Author of the Charley Davidson Series

“Mueller explores an intriguing concept in a seedy, visceral setting that pops to life on the page.”

Publisher's Weekly

“A fun, witty, fast-paced ride . . . Stellar work from Mueller! Looking forward to more from her in the future.”

RT Book Reviews

“Fun, heartfelt, and wildly creative, Borrowed Souls packs a new brand of punch in a debut urban fantasy with a soulful twist on magic. Determined heroine Callie Delgado will do anything to save her brother from the mob, including a deal with a devilish man, and working with a brooding stranger who is sin in a leather jacket. Author Chelsea Mueller brings a new and exciting voice to the UF genre.”

Kelly Meding

Author of the Dreg City Series

“Fans of UF aren’t going to want to miss this debut novel by Chelsea Mueller! The world building is rich and vibrant and the characters are multi-dimensional. The story is faced paced and engaging with tons of great action, snarky dialog, and just enough steamy romance to make it well-rounded story. If you’re a fan of the Alex Craft series by Kalayna Price, or the Mercy Thomson series, by Patricia Briggs, you’ll love BORROWED SOULS. I can’t wait for the next installment!”

Amanda Bonilla

Author of the Shaede Assassin Series


Geeky Giving shares exclusive short stories and artwork to raise funds to advance neurological research for Parkinson’s, ALS, TBI, brain tumors and more. The organization was founded by Chelsea Mueller and Christina Vanoverbeke, and all funds go directly to Barrow Neurological Foundation. Learn more at
Geeky Giving February 2016 Cover Art

Geeky Giving February 2016

This charity anthology features stories by Mary Robinette Kowal, Karina Cooper, Edward Ashton, and Sierra Dean. Edited by Chelsea Mueller & Christina Vanoverbeke.

Geeky Giving April 2016 featuring stories by Amanda Bonilla, JY Yang, and KB Spangler

Geeky Giving March 2016

This charity anthology features stories by Amanda Bonilla, JY Yang, and KB Spangler. Edited by Chelsea Mueller & Christina Vanoverbeke.
Geeky Giving March 2016 Cover Art

Geeky Giving March 2016

This charity anthology features stories by Michael J. Martinez, A.C. Wise, Robert Lowell Russell, and Jeff Somers. Edited by Chelsea Mueller & Christina Vanoverbeke.

Geeky Giving May 2016 Anthology

Geeky Giving May 2016

This charity anthology features stories by Shaun David Hutchinson, Heather Clitheroe, James Knapp and Ryan Britt. Edited by Chelsea Mueller & Christina Vanoverbeke.