28 Ice-cream mystery Joan gave an exasperated sigh. ‘We sell hundreds of ice-creams,’ she said. ‘We’ve shifted two tubs of honeycomb in the last week. I mean, how am I supposed to remember everyone I served?’ Grace was adamant. ‘It’s the key to the mystery. Why don’t you have security cameras?’ ‘We do.’ Joan pointed at a little CCTV camera hanging from the ceiling at the far end of the shop.’ ‘It doesn’t work. It’s not even plugged in.’ ‘I know that, and you know that, but potential shoplifters don’t.’ ‘It’s still not much use, is it?’ Grace thumped her hands against her thighs. ‘Come on, think. I remember serving two to a kid yesterday. I mean, he could have given it to someone waiting outside.’ ‘Lawrence Beattie always has honeycomb,’ Joan said. Grace shook his head. ‘He’s way t

