Nat is once more at the centre of an adventure. The older boys from the industrial ship, The Havannah, set sail for Pembrokeshire but their boat is damaged in a storm. Camping out on a military fort on craggy Thorne Island while the boat is being repaired, Nat and his friends hope to enjoy themselves, but watching out for smugglers turns out to be a serious business.
Gomer Press is a printing and publishing company based in Llandysul, west Wales. The company was first established in 1892 and is owned by the same family to this day. Jonathan Lewis, the great grandson of the company's founder, is the current managing director. Gomer Press today is both a thriving printing company and the largest publishing house in Wales.