Reading age: 9 - 12 years old. 

The detective duo everyone is dying to meet! Summer in London is hot, the hottest on record, and there's been a murder in THE TRI: the high-rise home to resident know-it-alls, Nik and Norva. Who better to solve the case? Armed with curiosity, home-turf knowledge and unlimited time - until the end of the summer holidays anyway. The first whodunnit in a new mystery series by Sharna Jackson.