When Sebastian goes undercover in the theatre to find a killer, things get... dramatic.In Three for Trinity, the third book in the Sebastian Synard Mystery series, offbeat humour meets suspense as a nefarious crime unfolds.Trying to run a tour business in COVID times is tough, especially when you're home- schooling a teenager. But with the creation of the Atlantic bubble, Sebastian can offer a tour of the scenic, historic Bonavista peninsula to a small group. On the last night of the tour, an actor collapses at a socially distanced theatre performance. Sebastian rushes to help, but Lyle Mercer has been poisoned. When Sebastian goes undercover as an actor to try to discover the killer, he's taking a risk in more ways than one. Will it upend his romantic relationship with police inspector Ailsa Bowmore?