The Winge Connection (Book 25). Genevieve Lenard, #25

Masterful forgeries. Vikings. Revenge. When a bloodstained note reveals a series of art forgeries, Doctor Genevieve Lenard and her team are thrust into a case that's anything but straightforward. What starts as an investigation into priceless paintings being replaced by flawless copies soon spirals into a complex conspiracy. The deeper they dig, the more perilous the case becomes-until Genevieve realises that the stakes are far higher than stolen art.
Dozens of innocent lives are in danger and they are running out of time. With too many questions and not enough answers, Genevieve is pushed to her limit to break through the labyrinth of secrets and clues before it's too late.