The Final Path - Sentinel Security, #5

There's something very wrong about the guy Dani helped escape Yeddoun. His story just doesn't add up. And no wonder: turns out he's an actual Nazi lost during WW2. Marie wants to send him back to Yeddoun but Dani finds out he's been doing terrible things for years. If they put him back, he'll continue doing terrible things. Then they realize he's done the most terrible thing of all. With a global pandemic shutting everything down, including the PATH, the Norris sisters have a chance to get rid of Sentinels once and for all.
But they'll have to work with a Nazi to do it.