After testing your new time machine, you've landed in Cairo in the year 1721 BC. Without any uranium to power the machine, you appear to be stuck.
Notes
Also available for the Oric. The Oric Site describes the game in detail, pointing out that the first part is a traditional text adventure whereas the second part is more of a "hacking" game.
From the page on CPC Power, you can find a test ending by: https://www.cpc-power.com/index.php?page=detail&onglet=test&num=1131
"K7 Cobra pour Amstrad et Oric" which can be translated by: "K7 Cobra for Amstrad and Oric".
Page on oric.org: https://www.oric.org/software/hyperspace_4-124.html