After coming to a decision, Kasper cast a divination spell to confirm their course. And as it turned out… the signs revealed it was indeed the right choice. Moreover, it was revealed to him that they were indeed being followed.
Spells from the School of Divination were highly mysterious. The results a Magus received from scrying were often left to chance. However, the simpler the question posed, the more clear the answer one received.
For example, divining a yes-or-no question would yield a direct response, compared to asking the when, where, or how.
Of course, if the other side employed anti-divination methods or possessed greater power than the one scrying, then it became nearly impossible to obtain any answers.
Fortunately, the pursuers had not used any anti-divination methods to conceal their movements or decisions. More importantly, their strength wasn't greater than Kasper's.