Light arrives on Tuesday 22nd April, into a bland cell within an unknown prison. He did not wake up from the sedative they used on him, before he was already within the building. There was no way to find out which country he was in (the temperature was always the same, cold). They covered his eyes, stuffed his ears and bound him to a stretcher under the transport. These measurements, could only be L's ideas. They reeked of paranoia. The cell was bland, white walls, patternless floor, one-sided glass on one side of the wall, which he recognized immediately. Everything is in sight, he can hide nothing in here. They dumped him onto the single matress on the floor and left the handcuffs on. He layed there, still muddy from the relaxants. But he'd kept counting on the descent, 52 steps to the first doors - where they paused most likely for the guard to open the doors with his access card - one staircase down, before that - an elevator. About 15 seconds descend, or ascend if they were on a topfloor, but very unlikely. For the rest, he was still knocked out.
There is still hope.
L taunts him. Scatters the contents from Sayu's letter, multiple pages falling from the envelope onto the dead white floor. Light doesn't respont. Later, when L has left, he crawls over. Only to see that the pages are blank. (L has taunted him.)
(Or Sayu has nothing to write). //He counts the pages. There are 24, exactly one for each day that has passed since he came.