Angel finished discussing the "Reincarnation Casket of the Undead" as told by Frost, then he stopped. As for what happened afterwards, he did not continue, as it was irrelevant to the present.
Although he arbitrarily added Gust Town into the experiences of Frost, all other content was true. After listening, Nail Granny did not doubt his words but sank into her own deep thoughts.
"Reincarnation Casket of the Undead" and "Reincarnation Casket," are they really the same mysterious object? Although Angel did not provide an answer, the implication within his words is quite clear.
There is a very high probability that they are the same mysterious object!
Nail Granny also felt this must be the case, because only then could it explain why Ivor of Gust Town was really Alex.
She recalled the memories of her time spent with Ivor and simulated Ivor's behavioral patterns and thought processes. Then using this simulated thinking, she analyzed all the actions of Alex in the Cage of Shadows.