The School Ship Tobermory and its intrepid young crew are back in Hebridean waters. When a violent storm blows them off course to a remote island, they discover a fisherman's journal written a hundred years ago which tells of a mysterious shipwreck crammed with treasure.

But without a precise location, where do they start looking? An extraordinary chance encounter gives them a valuable clue. Before long, Ben, Fee and their friends realize they are not the only ones searching for the lost wreck and must face a ruthless and determined adversary who will stop at nothing to seize the prize.

This is book 4 in School Ship Tobermory .

This book was published 2019 by Birlinn General .

Alexander McCall Smith grew up in Zimbabwe and then moved to Scotland. He is a professor of Medical Law and has written over 50 books, including the well-loved and best-selling No. 1 Ladies Detective Agency series. He lives in Edinburgh. Iain McIntosh 's illustrations have won numerous awards in the worlds of advertising, design and books. He has illustrated Alexander McCall Smith's 44 Scotland Street series and also the series of children's stories featuring Precious Ramotswe.