Midsummer Mysteries: Tales from the Queen of Mystery

I'm curious whether these tales were selected for their seasonal themes or because of their popularity. Did the author or editors aim for a particular mood or tone with this collection?

Some stories felt particularly summery and light, while others had a classic, timeless mystery vibe. How did others interpret the seasonal atmosphere in these tales?

Her clever plotting and subtle clues make her stories so engaging. I wonder what specific techniques she used to keep readers guessing without feeling overwhelmed.