Dex and Biana were smart enough not to ask what was going on. Keefe disappeared into his room the second he was done eating. The rest of them moved to the boys’ common room to work. Dex was hammering tiny stone wheels—apparently he and Blur had decided that was the best way to add them to the Twiggler. Biana and Calla worked by the windows, testing to see how long Biana could fool Calla’s eyes. And Fitz and Sophie plopped into the boulder beanbag chairs for another Cognate exercise. The next assignment was called Trigger Cues, a trick to make them more efficient at probing memories. Apparently each elvin mind was filled with tiny threadlike trails, and Telepaths could learn to follow them to something called a “cue.” The more uncomfortable the trail felt to navigate, the more the person had tried to hide the truth at the end. Their assignment was to follow a difficult path and say the cue out loud. The shock of hearing it was supposed to trigger some sort of mental reaction that would uncover the secret to the other person.
