The Secret of the Deepwater Portal: The Hidden City Beneath the River

This audiobook is narrated by a digital voice.

Willabrook Adventure series Book 3

Willabrook is finally calm again.

The clocktower ticks. The river flows. The town feels safe.

Until the river drains.

When a massive glowing hole opens in the riverbed, Alex, Jess, and Sam discover something far older than time glitches or broken inventions - an entire buried city hidden beneath Willabrook.

But the ancient Undercity is waking up.

A towering stone guardian rises. A terrifying Sentinel stalks the tunn...