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NeverseenBy: Shannon Messenger Series: Keeper of the Lost Cities Volume 4The fourth book in the international bestselling Keeper of the Lost Cities series. Perfect for readers aged 9+ and fans of Harry Potter, Rick Riordan and Amari and the Night Brothers. Sophie Foster is on the run but at least shes not alone. Her closest friends from the Lost Cities have gone with her to join the Black Swan. They still have doubts about the shadowy organization, but the
By: Shannon Messenger | Series: Keeper of the Lost Cities Volume 4The fourth book in the international bestselling Keeper of the Lost Cities series. Perfect for readers aged 9+ and fans of Harry Potter, Rick Riordan and Amari and the Night Brothers.
Sophie Foster is on the run – but at least she’s not alone.
Her closest friends from the Lost Cities have gone with her to join the Black Swan. They still have doubts about the shadowy organization, but the only way to find answers is to start working with them. And as they settle into their new lives, they uncover secrets bigger than anything they’d imagined.
But their enemies are far from done, and unleash a terrifying plague that threatens the safety of an entire species. Sophie and her friends fight with everything they have – with new allies joining them – but every choice has consequences. And trusting the wrong person could prove deadly.
In this game-changing fourth book in the Keeper of the Lost Cities series, Sophie must question everything to find a truth that will either save her world – or shatter it.
Don’t miss the brand-new book in the series, Stellarlune, out now!
Books in the Keeper of the Lost Cities series:Keeper of the Lost CitiesExileEverblazeNeverseenLodestarNightfallFlashbackLegacy
StellarluneUnlocked
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4.9 ★★★★★
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★★★★★ 5
Holistic Dentist Recommended & We’ve Seen a Big Difference
Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)
Our holistic dentist recommended Dr. Jen’s fluoride-free toothpaste with 10% nano-hydroxyapatite after my daughter had struggled with quite a few cavities. We wanted something that would help strengthen and support her enamel without fluoride, and this was the product she specifically suggested.
One thing I really like is that it’s a non-rinse formula. After brushing, she just spits and doesn’t rinse, so the nano-hydroxyapatite can stay on the teeth longer to help support enamel. That gives me extra peace of mind knowing it’s continuing to work even after brushing.
The texture is smooth and not gritty, and the flavor is mild enough that she actually uses it without complaining. Since switching, her teeth look clean and healthy, and we feel much better about her cavity prevention routine.
The only downside is the price — it’s definitely very expensive and one of the most expensive toothpastes out there. But for us, given the dentist recommendation and the peace of mind, it’s been worth it.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Hopefully it strengthens the Tooth Enamel!
Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)
Excellent Product: I've been using its for a couple months and the flavor is fantastic. Ideally, you don't want to rinse it off your teeth so that the Active HA coats them and stays on for a while (especially at night). I've been recommending it for my patients in my office, and will see if it stops some of the smaller cavities. I'm not a paid Sponsor but love the product
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Does what it claims.
Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)
Love this toothpaste. Helps with my sensitive teeth and I’ve gotten comments about how white my teeth are. Being fluoride free big plus
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Dental Assistant Review
Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)
I am a dental assistant & one of the doctors I work with is always recommending this toothpaste to patients & I truly love it, it tastes great, cleans my mouth great, I love that it’s fluoride free but still helps restore teeth! Definitely recommend!! :) Happy Smiles
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Reviewed in the United States on May 17, 2026
★★★★★ 4
Very expensive, but a good product
Flavor Name: Mint, Size: 3.4 Ounce (Pack of 1)
I like it, it seems to clean great and the flavour is good. I like that it foams more than other tooth paste. I tried it to see if it helped my wife sensitivity but it didn't, so I won't spend this kind of money on it.
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Reviewed in the United States on September 24, 2025