The old knight was apparently a traditional "riddler."
He always annoyingly points halfway through a conversation, perhaps he thought Murphy wouldn't be able to handle the threats he left unsaid, or perhaps he trusted the strength of "Scarlet Witch" that he had faced in the past more than the promising Murphy.
Murphy wanted to know more, but he also knew very well that if Old Feinock didn't want to talk, he had no way to force him to open his mouth. The comparison of strength in this situation felt so helpless.
Using the same method as before, the old knight quickly opened the thick wall of the Blood Eagle Corridor above the secret passageway waterfall and made a door leading deep into the corridor.
The two of them jumped in and landed inside the ornate corridor, while Murphy pulled out his map and studied the surroundings, speaking to the cautious old knight.