
When four teenagers wake aboard the deep-space vessel PROXIMA-7, the adult crew is in hibernation and the ship’s language processor is corrupted. Fixing the ship means fixing language — and the two challenges are exactly the same thing. Between Two Suns is a trilogy of interactive YA sci-fi graded readers for CEFR A2 English learners, published by Lexpedition.

The ship was never built for eight years of continuous occupation. Systems are failing, and Earth — years away — has been sending help. In Transmissions*, Izzy and the group race to decode messages written for engineers, not teenagers, constructing commands the ship’s computer has never had. Language restore ticks upward. And somewhere in the sealed section at the end of the corridor, something — or someone — is waiting.*
Keep Learning Between Chapters
Book Activities
Learn about the characters in the Mission Manifest