Launching herself on the trail of the mysterious present her uncle brought back from India , harmony spent hours puzzling out the cryptic message clues she found .Imagine her disappointment then when she finally reached the end of the trail and discovered nothing more than a mouldy old 50p piece! Swallowing her disappointment, she tried to puzzle out why her favorite uncle should have played such a mean trick on her ,instead of giving her the pet she longed for .50 p .What could be special about a 50p piece ?
It looked like an ordinary coin -but was it ?