Pay in installments of $17.50 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Nancy Drew 43: the Mystery of the 99 StepsBy: Carolyn Keene Series: Nancy Drew Nancy Drew must search for a flight of 99 steps to solve the mystery of a friends weird dream. Her search leads her to France, but before she leaves the United States, an unknown person calling himself Monsieur Neuf warns the young sleuth not to pursue her mission. With her friends Bess and George, Nancy arrives in Paris to join her father who is working on another case: to find out what, or who, is frightening
By: Carolyn Keene | Series: Nancy DrewNancy Drew must search for a flight of 99 steps to solve the mystery of a friend’s weird dream. Her search leads her to France, but before she leaves the United States, an unknown person calling himself Monsieur Neuf warns the young sleuth not to pursue her mission.
With her friends Bess and George, Nancy arrives in Paris to join her father who is working on another case: to find out what, or who, is frightening wealth financier Monsieur Leblanc into selling large amounts of securities. Startling discoveries convince the young detective that Mr. Drew’s case and her own mystery are linked by the 99 steps, and that a mysterious man has a strong hold over Leblanc. Is it blackmail? Nancy’s quest for further clues leads to the romantic chateau country in the Loire Valley, where a web of danger closes in tightly around the three girls.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 24 reviews
Sort
Product Reviews
★★★★★ 5
Keeps your engines running right.
Color: Blue, Number of Items: 1
Works great. I've had less trouble , mosty excellent performance with my small power tools and yard equipment since I've been using this and other Stay bil products.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
★★★★★ 5
Easy Rider
Color: Blue, Number of Items: 1
Great product. Great price. Costs double at most retail stores. I use it for fuel in Bass Boat, Harley + all lawn cutting fuel for motors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
★★★★★ 4
Helped to improve combustion in 12 year old Mercruiser 3.0L engine
Color: Blue, Number of Items: 1
I used the whole bottle in 1/2 tank of questionable gasoline from used boat from dealership, with no idea what mixture of gas water and particulates was in the gas tank in this 12 year old boat.
The dealer started up the boat, and it was taking a minute to get the idle going. He mentioned that the gas was a few months old, but I am guessing that is was more like 6 months old. This is the TKS engine, self priming. I think some water / condensate was in the tank. Before taking out to first trip, I added bottle and 5 gallons fresh gas. That trip to the lake, I still has some issues getting it to start easily. Ran OK, not great that day, went home, changed cap and rotor and wires. Next trip, 1 week later, the 3.0L started great, ran great, I am not sure if it took some hours to fully mix and interact with the old gas, neutralize the water, and perform it's reactions, before it made existing gas more combustible, but that is what it seemed like to me.
***UPDATE**** - I had strange fuel issues the next season after using this product. I had to replace the fuel pump and many other fuel delivery components including the carburetor. Not sure if this contributed to the fuel system failing, the long term effects outweigh the short term gains.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2024
★★★★★ 5
good buy
Color: Blue, Number of Items: 1
good buy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Had water in my gas
Color: Blue, Number of Items: 1
Made my 150 outboard quit bogging down during acceleration
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026