“Psi technology had come far enough to use coercion, if necessary, as well as the usual inter-dimensional cloaking to avoid detection. And if she refused to come willingly, rather than force the issue he would do everything in his power to make sure she was stuck there for the rest of her life.” ThreatsScience Fiction Young AdultOther DimensionsCloaking DevicesPsi Technology Book:A Dark of Endless Days Source: A Dark of Endless Days