Killing Monarchs : Adventure Publications : 9781647551759 : 1647551757 : 27 Jul 2023 : "As a special agent for the US Fish & Wildlife Service, Sam Rivers has researched and studied a variety of animals. He's visiting sixth graders at Hopkins Elementary to share photographs of the Monarch butterfly-and he's brought along his drug-sniffing wolf-dog, Gray, to give students a demonstration of his partner's remarkable skills. Gray finds a sample drug packet, hidden by Sam, but that's not all. The wolf-dog keeps following his nose, leading Sam to a utility room where they discover the school's janitor, dead. Local police write it off as a drug overdose, but Sam is no stranger to crime scenes. He suspects foul play. When Sam and Gray come upon a second victim, the coincidences are too great to ignore. Sam starts turning over rocks-and what slithers out is more insidious than anyone could have foretold. Sam's instincts tell him there'll be more deaths, but those instincts put him at odds with