take tablet
# get first code
use tablet
doorway
north
north
bridge
continue
down
east
take empty lantern
west
west
passage
ladder
west
south
north
take can
use can
use lantern
west
west
south
north
# get second code
west
ladder
darkness
continue
west
west
west
west
north
take red coin
north
north
west
take blue coin
up
take shiny coin
down
east
east
take concave coin
inv
down
take corroded coin
up
west
look monument
look
look red coin
look blue coin
look shiny coin
look corroded coin
look concave coin
use blue coin
use red coin
use shiny coin
use concave coin
use corroded coin
# now got coin puzzle code
north
take teleporter
use teleporter
take business card
take strange book
look bookshelf
look business card
look strange book