Dave Sweet is an active-duty Homicide Detective with the Calgary Police Service with twenty years on the job. He has also worked in the Drug Unit and the Organized Crime Section. He teaches new recruits and presents at law enforcement conferences and various community groups. In 2017 he received the Chief's Award for Excellence in Investigation. Sarah Graham spent a decade as an archaeologist before becoming a Traditional Knowledge facilitator for Indigenous Communities and oil companies. She writes action-adventure romantic fiction under a pseudonym when she's not writing books with police officers.