Introducing a new writing tool from the maker of QueryTracker.
Learn More...
Introducing a new writing tool from the maker of QueryTracker. Learn More...

Ms. Kristin Ostby

Greenhouse Literary Agency

Should you query this agent?

Get answers to this, and many more agent questions at QueryTracker.


Kristin Ostby

Greenhouse Literary Agency

Twitter (X):
AALA Member:
Yes (Visit Site)
Query Methods
Accepts queries via...
QueryManager [Go To Form]
Submit Query
This agent is seeking the following genres:


Graphic Novel
Middle Grade
  • Middle Grade, Contemporary
  • Middle Grade, Fantasy
  • Middle Grade, Historical
  • Middle Grade, Literary
  • Middle Grade, Mystery
  • Middle Grade, Science Fiction
Picture Book
Young Adult
  • Young Adult, Contemporary
  • Young Adult, Fantasy
  • Young Adult, Historical
  • Young Adult, Literary
  • Young Adult, Mystery
  • Young Adult, Paranormal
  • Young Adult, Paranormal Romance
  • Young Adult, Romance
  • Young Adult, Science Fiction


Join Now (FREE) to learn more about this agent. (Such as how often and how quickly each agent replies to queries.)

Known Clients (current & past)
Winifred Conkling
Alexandra Diaz
Molly Kasperek
Natalie Lund
Meghana Narayan
Annemarie O'Briann
Tricia Springstubb
Sophie Stewart
Shawn Stout
Author Comments
Comments by authors about this agent.
12/07/2023 07:04 AM
MG Contemporary Retelling 35K
QM: 11/1
Nudge with Offers: 11/19
Full Request: 11/28

Ghosted on the Full Request

11/26/2023 05:11 PM
MG Horror - 40k
Queried: 11-26-23
11/15/2023 07:57 AM
QM 11/11/23
form rej 11/15/23

88k ya fantasy

"Thank you for taking the time to submit your query and for considering me as your potential literary agent. Your project is not a fit for my list right now, but I wish you all the best in your publishing endeavors."
11/11/2023 01:04 PM
10/23/23: Submission after #DVPit like
11/9/23: Rejection
94K adult historical mystery

Um, one of the reasons she gave for rejecting was that she wanted more humor in the opening pages—of a book about murder and racial injustice that was not remotely pitched as being funny. Absolutely baffling.
11/09/2023 04:30 PM
FQ: 10/27
Nudge with offer of rep: 11/1
Step aside: 11/9

97k YA LGBTQ+ Fantasy

More author comments available to members.

Join Now (Free)
Agent Interviews
Interviews with this agent from across the web.

None found for this agent

Success Story Interviews
Read interviews with authors who have signed with this agent.

None found for this agent

View all success story interviews

Report a success story

Profile History
Last Update:
05/30/2023 - Genres updated.
Always verify agent's information before sending your query, and review the agent's website(s) for more up-to-date information.

Though we do our best, QueryTracker can not guarantee the accuracy of any information provided.

An agent listing on QueryTracker is not an endorsement or recommendation of that agent by QueryTracker.

Before contacting an agent, authors should verify and assess the agent's requirements and suitability by visiting the agent's website(s), and becoming familiar with ways to spot and avoid bad agents. A good place to start is Writers Beware, a watch group that helps inform and protect authors from shady practices.