Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
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.