Solution to The House
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sitting room
x rug > bottle
library
read books [5/5] > w
lab
x table > sheet; get sheet; x dummy; open dummy; x dummy;
turn on computer; x computer; type parts on computer; type log on computer
study
x table > crystal; x box;
put crystal in box [10/15] > d
secret room
> thing
l under bed [10/25] > stick, scroll
put sticks in devices [5/30]; active device & wait [10/40] > key
kitchen
x table > fork; x cupboard; x basket > memo;
bathroom
open cupboard >
maze
s [5/45] > computer room
computer room
put stethoscope on safe [10/55] > black key
x aquarium; x ornaments; x octopus; get octopus [5/60]
lab
put octopus, thing, fork in dummy; close dummy
type activate on computer [10/70]
dummy, open safe [5/75]
passage
unlock door with small, black and dull key
open door
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solved by sasi