An Island of Our Own by Sally Nicholls

an island of our ownIn this fast paced adventure, three orphaned children live in poverty in London. Visiting their Auntie Irene in hospital, they are given an old photo album with a set of strange photos in it. Their Aunt was an inventor, and made a fortune. However, she was very secretive and distrustful, so when she dies, the jewels which she promised Holly and her brothers would inherit are nowhere to be found. Then Holly realises that the album could be a set of clues, and a treasure hunt across the country begins in a bid to find the jewels before their greedy uncle gets there first.

Taking them from the rail tracks outside London to a remote Scottish island with chapters called