The magus would continue to watch Kaheksa, with a great deal of distrust and suspicion. It was fairly obvious that she didn't care much for that answer, nor did she appreciate being lied to initially by the dark half elf.  But, with one ally blind, another tasting ooze, and others having left, there was little she could do about it.  So she'd stand there, warily watching the woman as her stomach continued it's work on breaking down Lydia's body, using the dead mage to feed her primal hunger.