Astrid and the Space Cadets: Danger at the Black Lagoon!

Blast off on an adventure with the Space Cadets! From beloved children's author-illustrator Alex T. Smith, the bestselling creator of Claude and How Winston Delivered Christmas, comes a funny and fast-paced adventure through space.

Filled with out-of-this world sound effects, Astrid and the Space Cadets: Danger at the Black Lagoon! is perfect for fans of Grimwood and Bad Guys, and for kids who are ready to listen by themselves.

Astrid and the gang are excited to help two scientists track down a mysterious, never before documented family of fish who are rumoured to be living on an underwater planet. But isn’t long before things take a shocking turn when Astrid and the Space Cadets discover that they have been tricked. The scientists are actually infamous Intergalactic Sea Bandits!

Can the gang catch the Sea Bandits and rescue the treasure? It’s going to prove a difficult job especially when they find themselves swallowed whole by one of the Guard Sharks . . .

Join Astrid and the gang on more adventures in Attack of the Snailiens and Race from Planet Peril!

© 2025 Macmillan Children's Books (Audiobook): 9781035019823

Release date

Audiobook: June 19, 2025