First edition in a dust jacket.

Illustrated by Burgess Sharrocks

Jack's sister, Susie, has a lovely new aeroplane, and the Secret Seven, and Susie go off to fly the new plane. Sadly it flies across the field, and over a wall into the grounds of Bartlett Lodge, which is a very big house but is closed up whilst the owners are abroad. So once the gardener is out of sight, Peter and Jack climb into the grounds of the large house and Peter climbs a tree to retrieve the plane which had landed on a high balcony. Just before he climbs down he sees a gas fire on inside one of the rooms, which he knows is strange as the house is empty. Feeling puzzled, Peter calls a meeting and their next mystery is about to begin!

The book is in very good condition, tightly bound, top edge greyed. The dust jacket is worn to the extremities with a small piece missing at the bottom spine end; the previous owner has ticked the books that she owned on the back cover and has written her name on the front fold over: unclipped showing 7/6 net. Light foxing on the end papers, text block generally clean, free of markings and foxing.