The story is set in the Tirol during the summer holidays preceding RUEY
RICHARDSON - CHALETIAN / RUEY RICHARDSON AT
THE CHALET SCHOOL
The triplets are nearly fifteen when the story opens
Professor Richardson is officially an astronomer but he is obsessed with space travel. When he leaves to 'go away for a year or two' his children believe that he is going to join the first manned space mission with a known destination.
The collision on the lake shore where the Richardsons and Maynards first meet results in Roger Richardson being confined to bed for some time with a fever as a result of a very bad gash in his leg.
Shortly after the hikers tell the story of the bank robbers, Steve and Charles come racing back to the hut with the news that the robbers are on their way. The result is that a "pair of guileless youths from Birmingham" who had been inadvisedly climbing the Pass were attacked by the Maynard / Richardson party in full force. Jack Maynard does not see the funny side of it.
Synopsis writer's note:
When this book was printed in 1960, it was almost ten years before the first landings on the moon, and the US space program was very much in its infancy. It is therefore possible to presume (with the benefit of historical hindsight) that the country Prof Richardson had heard of that was about to make a flight was old Soviet Union (now Russia).