When Alan returned home, he went straight to the clinic in the main house because he knew where they were going to keep him.
In the room were his mother, a few nurses, and two doctors. They all looked busy looking through books and on the PC. They seem to be researching something.
Why did Solomon wait until now to mess with Andy's prosthetic leg? They were aware that he had implanted a microchip in his leg, so they made certain that Andy was never present during any time they had important discussions.
They had been attempting to decode and replace the limb, but none of the available artificial legs was a match because his body had become accustomed to the advanced technology Solomon had used.
Alan and James had been working hard to encrypt the present microchip, ensure Solomon no longer had access to it, and then remove it so he could keep the leg.
While the doctors worked, they stuck around to deal with technology issues.
