It's October half-term and popstar,TrojKat is filming a music video in the The Tri,the high-rise block home to slueths Nik and Norva.When tragedy strikes the famous singer under mysterious circumstances,Nik and Norva set out to solve the case,with their friend George,and their impressive detective skills. Sequel to HIGH-RISE MYSTERY,another who dunnit in the phenomenal mystery series by Sharna Jackson.