Grist Vergette's Curious Clock

Johnny Vergette is fixing up an old bike in the garage when his mother calls him into the house.

Grist Vergette his grandfather, passed away a few weeks before, and Johnny's inheritance has just arrived. It's a key. The key to Grist's old garden shed down on the allotments.

Johnny goes outside where he meets Seri, the German neighbour's daughter, and the two of them set off in the sunshine for the allotments.

The shed is not like other sheds. It's bigger ...