My Dive Partner Planned Murder

Synopsis

My childhood friend and I were both obsessed with cave diving. The underwater world was shadowy and still. He was the only one I ever dove with. The night before our engagement, he asked me to join him at a famous cave diving spot. He'd confessed his feelings to me there once before. This time, he brought Moira Rossetti, the girl from our class who was always struggling to make ends meet. He gave me a gentle smile and explained, "Moira's really curious about cave diving, so I thought I'd bring her along to see what it's all about." After a pause, he added, "Yvette, you don't mind, do you?" I stared at the expensive, shiny new gear Moira was wearing, but kept quiet. I silently warmed up, then dove into the water. When I reached fifty meters below the surface, one of them suddenly ripped off my regulator, while the other yanked off my fins. Panicking, I saw Moira nonchalantly signaling to me. [Don't panic, Yvette. This is just Frank's pre-engagement trial for you.]