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 tunnels. And when Alex is pulled into the depths by a mysterious spiral key, Jess and Sam must follow him into a world powered by memories themselves.
Deep underground, they uncover the truth about the city's collapse - and the dangerous power hidden at its Core.
If they can't stabilise it, the river won't just flood...
The Secret of the Deepwater Portal is a thrilling underground adventure about courage, friendship, and the power of remembering who you are - even when the world beneath your feet begins to wake.
外文書商品之書封，為出版社提供之樣本。實際出貨商品，以出版社所提供之現有版本為主。部份書籍，因出版社供應狀況特殊，匯率將依實際狀況做調整。
無庫存之商品，在您完成訂單程序之後，將以空運的方式為你下單調貨。為了縮短等待的時間，建議您將外文書與其他商品分開下單，以獲得最快的取貨速度，平均調貨時間為1~2個月。
為了保護您的權益，「三民網路書店」提供會員七日商品鑑賞期(收到商品為起始日)。
若要辦理退貨，請在商品鑑賞期內寄回，且商品必須是全新狀態與完整包裝(商品、附件、發票、隨貨贈品等)否則恕不接受退貨。
