From the perilous shores of Venezuela to a legendary pirate's hidden hoard—Mark and Liz sail straight into danger and discovery!

After a tense standoff with a corrupt harbor manager in Maracaibo, Mark and Liz are forced to flee for their freedom. But even on the open sea, danger follows. Narrowly escaping a pursuing vessel, they chart a course toward San Andrés Island off the Nicaraguan coast—a lush, mysterious paradise with a secret buried deep in its jungle heart.

Legend has it that the infamous pirate Henry Morgan once hid his treasure in a cave on the island. Under the cover of night, Mark and Liz sneak ashore to find it. Their reward? A stash of glimmering pearls and rare diamonds—and renewed peril. Sailing north between Cuba and Cancun, they once again cross paths with their relentless enemy, Gonzales, and his shadowy fleet.

In this high-stakes fourth installment of The Amazing Adventures of Mark and Liz, mystery, maritime chase, and treasure-hunting thrills collide in an unforgettable Caribbean journey.