As Marvin had guessed, he had already been asleep for days in Feinan. Three, to be precise.
When he didn't wake up on the first day, although Anna and the others were surprised, they only looked for a doctor and Madeline to check.
No one could see anything wrong with Marvin.
He just seemed to be sleeping, and there was no other sign that anything was wrong. Thus, they could only wait and see for the time being.
But when he was still asleep the next day, Anna and the others became quite sure that something was indeed wrong.
Madeline's soul was still connected to Marvin due to the book of Nalu.
She could sense some movement in Marvin's state of mind and his soul. She noticed some very intense fluctuations, as if he was actively experiencing something.
This situation put her on guard. She began consulting relevant information, but nothing that she found was of any help.