He must confront the mage called Phalen, but he does not want that confrontation to occur at the mage’s home, where the mage keeps his tomes and circles and that one item above all, the Roggoth’shoth, guarded over by the familiar Vorteria and other spirits. Rather, he wants the confrontation to occur where the mage is likely to be at his most vulnerable. The only other place Phalen has gone is to the Metascience labs of Hurley-Cooper, so, by default, that’s the place. The watcher spirit’s report means that Phalen is there.