They began to read the book together and gathered some really useful information. These people were called POLYMORPHS. It was mentioned in the book, unlike Robert told Rachel, the alternative strategy to achieve that state though not in clear words but it was mentioned.
'One must not disturb the peace of these polymorphs or else they could be angers and destroy you, you can have a chat with them if you want some good advice but one must not win their trust and hurt them, it could kill them and their highly powerful state will scatter around.'
Charles spoke "So this is how that person achieved this stage."
Kevin nodded "But that is not important, what is important is that how do we kill him because winning his trust must be hard as this is what he did, he will be cautious about that and moreover why did he want Rachel."