Hi there! In Piggy book 1, you'll find a note saying ' DON'T TRUST THE SI-' However it was not continued. This means, either the writer got infected during writing it, had to run from an infected, or lost the note. My theory is, ' DON'T TRUST THE SILVER PAW, '
The Silver Paw is a group mentioned in piggy book 2, ran by Willow, the player's main Antagonist. This has not been the first sighting of The Silver Paw, as they may have written the notes in Piggy Book 1, labeled from the T.S.P. This stands for The Silver Paw, but also for The Safe Place.