
The Vacuum of Space: A Funny Sci Fi Mystery (Space Janitor Book 1)
by Julia Huni
4.4 stars from 1,138 reviews. Top 89% of Mystery Thriller books we track.
Last checked: Jun 10, 2026
Buy now — it's free!
Price range: Free – $4.99
0 readers are tracking this book's price
Fans of these authors will like this...
- Andy Weir
- Becky Chambers
- Janet Evanovich
Fans of these books will like this...
- The Martian
- A Long Way to a Small, Angry Planet
- One for the Money
Perfect for you if...
- You enjoy sci-fi mysteries with genuinely funny banter and a protagonist who'd rather eat chocolate than deal with rich people's problems.
- You like your detective stories grounded in character work rather than flashy action sequences.
- You're looking for the first book in a completed series you can actually finish without waiting years for the next instalment.
Maybe not for you if...
- You want hard sci-fi worldbuilding with extensive technical explanations of how space stations work.
- You prefer your mysteries dark and gritty without comedic relief breaking the tension.
- You need your protagonists to be confident heroes; watching someone reluctantly solve crimes whilst worrying about rent isn't your speed.
About this book
Get the best deal every time
We track price drops, sale patterns, and predict when this book will go on offer next.
Price History
Kindle price over time. Green zones = periods when the book was free.
Currently free. Price has dropped 9 times over the last 5 years. Goes on sale roughly every 195 days.
Sales Rank
Amazon sales rank: lower number = better selling book. #1 is the bestseller.
Currently around #60K in the Kindle store — a steady mid-list seller. Climbing the charts — 28% improvement recently.
Rating & Reviews
Purple line = star rating over time. Blue area = total review count growth.
Currently 4.4★ from 1,138 reviews
Gaining approximately 13 new reviews per month. Rating has remained stable at 4.4 over the tracking period.
Sale Prediction
Actual Predicted
This book is currently free. Grab it while you can.
Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.
Never miss a deal on this book
Create a free account to unlock full price history charts, sale predictions, and get notified instantly when the price drops.
More Mystery Thriller books you might like
View all Mystery Thrillerbooks →
by Douglas Preston

by Joel C. Rosenberg
Today's Best Deals
View all deals →

by Ferguson, Jo Ann

by Kathryn Hughes

by Lucinda Riley


by Cameron Herold
Affiliate link. We may earn a small commission at no extra cost to you.
