Mandragore/Yarod-Nor's castle

Yarod-Nor's castle

25% of original size. Click to enlarge.

Rooms	35
Loot	80 silver coins (trophy)
Life	+0
Score	4172 exp.

Some doors close behind the party, but the first door that actually blocks your path is one-way. Before you open it, take and sell the trophy in the west room.

Hint

The mandragore ("mandrake") is in four parts, one per party member. Which commands can be used with items in the inventory?

After you properly used the mandrake parts, go to Yarod-Nor's throne room and use a password hidden in the nine stanzas.

Spoiler

Eat the mandragore parts, and each party member will become microscopic (invisible to the naked eye). 
First letters of each stanza: TNSADWOAT.

In Demonem

25% of original size. Click to enlarge.

Rooms	9
Loot	0
Life	+0
Score	1530 exp.

In the original version, the first letter of each stanza obtained by solving each castle puzzle gave the phrase "In demonem", Latin for "in the demon" (or "in the monster"). This final dungeon is the bloodstream of Yarod-Nor himself. Globule is French for "blood cell".

Hint

One room is a dead-end with no exit: avoid it.

Spoiler

Kill the Filanta. 
The name comes from étoile filante, French for "shooting star". It is a living fragment of the shooting stars mentioned in the backstory.