App Store

Google Play

{{seriesTitle}} - The book series

image.devices-Singapore 2x

Step into an infinite world of stories

Listen and read

Renate Schalk Schreiner

The adventures of Olli and his friends continue. Going alone he meets a seahorse and a turtle and learns about their life in the ocean. . With his guppy friends he has a fun silly day.

On their field trip into the dark Abyss they discover something exciting, finding out about humans which they never saw before, and then get to meet some of them.

Paul Stefano

PageTurner Press and Media

WELCOME TO OLLI’S UNDERSEA WORLD

The Secret in the Abyss: The Secret in the Abyss

WELCOME TO OLLI’S UNDERSEA WORLD - The book series

WELCOME TO OLLI’S UNDERSEA WORLD - The book series

WELCOME TO OLLI’S UNDERSEA WORLD books in order

Listen and read