SOLUTION de l'auteur.

N E
GRAB SCIS
W W
OPEN CUPB
OPEN COLL WITH SCIS
PUT SCIS
E S E E
OPEN DRAW
GRAB MAST
W W S S S
W S S
LOOK AT BENC
HELP
LOOK AT JOUR
TAKE JOUR
DROP JOUR
N N E E S
S S
LOOK AT ROPE
PULL ROPE UP
LOOK BOTT
HELP
TAKE BOTT
THRO BOTT TO FLOO
N N N W N
N N N N U
S W
HELP
LOOK SHEE
HELP
E E
READ TRAN
GRAB TRAN
W N U S
OPEN DOOR WITH KEY
E
LOOK COMP
W S W
GRAB BOOK
READ BOOK
E N N D D
D N N W
HELP
LOOK AT SAFE
READ BOOK
OPEN SAFE
(Input the multiplicative product of the 3 primes on the book. This is also an ASCII-encoded concatenated 7-character text: the iteration formula
E S S U S
S W
PUT TRAN
HELP
LOOK AT PROJ
PRES BUTT
E N N U U
S E
PUZZ
(The fractal is symmetric to the x-axis. The yellow period-2 piece is on the B-row. Or compute one from the iteration formula to look at its shape.