"I don't know," Blankenship confesses. "I didn't have a chance to investigate further, as the first notice I had that the barrier was thin was me being pulled through."
"How did that happen, Bob?" Dr. Ellison asks.
Blankenship shrugs. "Hard to say. The finest practitioners we have ever produced have studied the barrier for lifetimes and learned little about moving practitioners between dimensions."
Alex sniffs. "He is a dilettante. I have nothing more to learn from him." Then Alex thoughts turn frantic again. "Unless he discovered something in his method of return! Ask him! Ask him! Your entire race's survival could hinge on the answer!"