Guestbooks

"Craft guestbook at a workbench and attach it to your shelter. Visitors may leave up to 100 short signed entries with valley time. Only entry authors can remove their pages; mute/report controls apply. Signed books remain with the shelter and block unbuilding until authors remove entries. An empty book can be detached if pack capacity allows; quality and condition are preserved. Ruined shelters keep pages readable but block writing."