Guestbook book written by vantablack420 called unsigned3_vantablack420.md - located at -114 / 6 / 239 in the underground, inside of a hotel in the overworld.
The book is located on the tilder server.
UNDERCITY HOTEL
INFORMATIONAL BROCHURE
by vantablack
-------------------
construction on the
undercity hotel was
finished officially on
3/3/2021
it is the first part of
the undercity project
to be fully realized to completion,