Start gifting
Libro.fm for Business
Start a membership, get two free audiobooks
Almost ready!
In order to save audiobooks to your Wish List you must be signed in to your account.
Log in Create account
Limited-time offer
Get two free audiobooks when you make the switch!
Now’s a great time to shop indie. When you start a new membership supporting local bookstores with promo code SWITCH, we’ll give you two bonus audiobook credits at sign-up.
Make the switch
Gift audiobook credit bundles
You pick the number of credits, your recipient picks the audiobooks, and your local bookstore is supported by your purchase.
Start giftingShadows at Predator Reef
This audiobook uses AI narration.
We’re taking steps to make sure AI narration is transparent.
Learn moreDiving into deadly waters...
The world's largest reef exhibit is coming to the Bayport Aquarium. Frank and Joe are stoked for the unveiling of Predator Reef, a three-hundred-thousand-gallon tank that houses small sharks, rays, and thousands of colorful fish. It’s also home to the aquarium’s new mascot, Captain Hook — a rare and valuable, five-hundred-pound, giant sea turtle.
But instead of a big reveal, the boys get a big disappointment: Captain Hook has gone missing, along with loads of other exotic fish. Is the aquarium the target of a sinister smuggling ring? And can Frank and Joe do damage control before they’re trapped in a deadly underwater maze... with no way out?
Franklin W. Dixon is the pen name used by a variety of different authors (Leslie McFarlane, a Canadian author being the first) who wrote The Hardy Boys novels.