diff --git a/mist/graphics_stoney/Makefile b/mist/graphics_stoney/Makefile
index d8a14f56..a0f2e780 100644
--- a/mist/graphics_stoney/Makefile
+++ b/mist/graphics_stoney/Makefile
@@ -17,6 +17,7 @@ stoney_graphics.inc:	\
 	lighthouse_inside_e.lzsa lighthouse_inside_w.lzsa \
 	lighthouse_inside_n.lzsa \
 	lighthouse_inside_nowater_n.lzsa lighthouse_inside_notrunk_n.lzsa \
+	lighthouse_inside_lidup_n.lzsa \
 	lighthouse_upstairs_e.lzsa lighthouse_upstairs_w.lzsa \
 	lighthouse_battery_w.lzsa \
 	lighthouse_downladder_e.lzsa \
@@ -70,6 +71,7 @@ stoney_graphics.inc:	\
 	echo "lighthouse_inside_n_lzsa: .incbin \"lighthouse_inside_n.lzsa\"" >> stoney_graphics.inc
 	echo "lighthouse_inside_nowater_n_lzsa: .incbin \"lighthouse_inside_nowater_n.lzsa\"" >> stoney_graphics.inc
 	echo "lighthouse_inside_notrunk_n_lzsa: .incbin \"lighthouse_inside_notrunk_n.lzsa\"" >> stoney_graphics.inc
+	echo "lighthouse_inside_lidup_n_lzsa: .incbin \"lighthouse_inside_lidup_n.lzsa\"" >> stoney_graphics.inc
 	echo "lighthouse_upstairs_e_lzsa: .incbin \"lighthouse_upstairs_e.lzsa\"" >> stoney_graphics.inc
 	echo "lighthouse_upstairs_w_lzsa: .incbin \"lighthouse_upstairs_w.lzsa\"" >> stoney_graphics.inc
 	echo "lighthouse_battery_w_lzsa: .incbin \"lighthouse_battery_w.lzsa\"" >> stoney_graphics.inc
diff --git a/mist/graphics_stoney/lighthouse_inside_lidup_n.png b/mist/graphics_stoney/lighthouse_inside_lidup_n.png
new file mode 100644
index 00000000..68cfd2a9
Binary files /dev/null and b/mist/graphics_stoney/lighthouse_inside_lidup_n.png differ
diff --git a/mist/stoney_puzzles.s b/mist/stoney_puzzles.s
index 5a75f41e..150ba5c1 100644
--- a/mist/stoney_puzzles.s
+++ b/mist/stoney_puzzles.s
@@ -428,15 +428,26 @@ draw_notrunk:
 	bne	done_draw_trunk		; bra
 
 draw_trunk:
+	; see if lid is up
+	lda	TRUNK_STATE
+	and	#TRUNK_LID_OPEN
+	bne	draw_trunk_open
+
+draw_trunk_closed:
 	lda	#<lighthouse_inside_n_lzsa
 	sta	location5,Y			; STONEY_LIGHTHOUSE_INSIDE
 	lda	#>lighthouse_inside_n_lzsa
 	sta	location5+1,Y			; STONEY_LIGHTHOUSE_INSIDE
+	jmp	done_draw_trunk
+
+draw_trunk_open:
+	lda	#<lighthouse_inside_lidup_n_lzsa
+	sta	location5,Y			; STONEY_LIGHTHOUSE_INSIDE
+	lda	#>lighthouse_inside_lidup_n_lzsa
+	sta	location5+1,Y			; STONEY_LIGHTHOUSE_INSIDE
 
 done_draw_trunk:
 
-
-
 	lda	PUMP_STATE
 	beq	done_update_pump_state
 	cmp	#DRAINED_EXIT
@@ -1596,6 +1607,21 @@ start_key_animation:
 	rts
 
 inside_other:
+
+	; if water-up-not-open	do nothing
+	; if water-down, go down steps
+	; if water-up-open - grab key
+
+	lda	PUMP_STATE
+	cmp	#DRAINED_LIGHTHOUSE
+	bne	inside_water_up
+inside_and_drained:
+	lda	#STONEY_LIGHTHOUSE_SPIRAL
+	sta	LOCATION
+	jmp	change_location
+inside_water_up:
+
+
 	rts
 
 rotate_to_ladder:
@@ -1646,9 +1672,29 @@ looking_toward_trunk:
 	cmp	#8
 	bne	done_draw_inside_lighthouse
 
+	; done animating
 	lda	#0
 	sta	ANIMATE_FRAME
 
+	; open trunk but only if trunk is up
+	; so if TRUNK_STATE & TRUNK_WATER_DRAINED = 1
+	;	and PUMP_STATE & DRAINED_LIGHTHOUSE = 0
+	lda	PUMP_STATE
+	and	#DRAINED_LIGHTHOUSE
+	bne	dont_open_trunk
+
+	lda	TRUNK_STATE
+	and	#TRUNK_WATER_DRAINED
+	beq	dont_open_trunk
+
+	lda	TRUNK_STATE
+	ora	#TRUNK_LID_OPEN
+	sta	TRUNK_STATE
+
+	; actually change background
+	jsr	update_pump_state
+	jsr	change_direction
+dont_open_trunk:
 
 done_draw_inside_lighthouse:
 	rts
@@ -1714,3 +1760,10 @@ key_frame5_sprite:
 	.byte $AA,$AA,$A0,$00,$0A,$0A,$A0
 
 
+	; at 16,30
+trunk_key_sprite:
+	.byte 5,2
+	.byte $AA,$AA,$AA,$0A,$0A
+	.byte $00,$A0,$A0,$00,$A0
+
+
diff --git a/mist/zp.inc b/mist/zp.inc
index 31c075bb..d2d1e862 100644
--- a/mist/zp.inc
+++ b/mist/zp.inc
@@ -244,7 +244,8 @@ TRUNK_STATE		= $C9		; trunk state in stonsehip
 	TRUNK_VALVE_OPEN    = $01
 	TRUNK_WATER_DRAINED = $02
 	TRUNK_KEY_TAKEN	    = $04
-	TRUNK_HATCH_OPEN    = $08
+	TRUNK_LID_OPEN	    = $08
+	TRUNK_HATCH_OPEN    = $10
 
 SELENA_BUTTON_STATUS	= $CA
 	SELENA_BUTTON1	=	$01	; POOL  (water)