Lords of the Cruth Lowlands - Vaults of Pandius

The Ruins of Achelos
the Steading the PC should have reached
level 8-9. The final boss, the Small Black
Dragon, can still be a good or challenging
fight at level 8 (even more dangerous if
the PCs try to subdue it or if they are
surprised). The other key monsters are a
roper and a succubus. The first is a
challenging fight (it is stronger in BECMI
than in 3e), and can be kept as is. The
latter (a Whispering Fiend in BECMI) is
probably too strong for a name-level
party.
Other Adventures
“River of Blood” can be used as an
introductory adventure for the Cruth
Lowlands.
The following adventures can also be
employed in the Cruth Lowlands.
The Barrows
These ancient Giant burial sites hold a
variety of challenges. All of them are based
on similar locales in “King of the
Giantdowns”.
Barrow of Uidar the Quick
Use the “Barrow of Borg Ttundarhart” from
“King of the Giantdowns” for this locale.
Barrow of the Thyatian Tribune
Use the “Barrow of Six Knights” from “King
of the Giantdowns” for this locale.
Barrow of the Giant King
This short adventure can be adapted from
the Birthright supplement “King of the
Giantdowns”. Just change the involved
parties in the war to Bromdignag Giants
and Taymor armies, as described in the
Atlas section.
Operations” 24 , or the map for the Old Fort
of Lemnjohen in “King of the Giantdowns”.
The “Base of Operations” module can also
be used to create a brief adventure, or the
Abandoned Fort can be used to stage an
encounter with the Achelos Outlaws, the
Iron Ring, or any other enemy the party
has been chasing.
Tomb of Trinkla the Black Seer
Recently, cultists of Orcus plotted to send
the Bell of Chardastes, a minor artifact
that could ruin their plans in Achelos, into
Trinkla’s Tomb. There, the undead Seer is
siphoning the energy of the Bell to
replenish her own strength, and might
emerge as a full Lich in the near future,
unless the Bell is recovered.
Use the “Tomb of Horrors” for this
adventure. While the Tomb of Horrors is
not a Mystara adventure, it does not need
much support from the campaign itself,
being essentially a self-contained
environment. Moreover, it is available in all
editions of D&D, and the 3e version is
even available for free from WotC.
The 3e version adds some monsters that
may need to be replaced (e.g., demons,
which are Exalted and thus too dangerous
for Expert level adventurers), but the 1e
version can be used almost without
modification (one might still make
cosmetic changes, like considering the
"mutant" gargoyle as a variant gargoyle,
since gargoyle are constructs in Mystara;
also, the Siren might be replaced by a
Triton or Mermaid NPC).
Abandoned Thyatian Fort
The Abandoned Thyatian Fort can use the
map from the 3e free adventurer “Base of
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24 http://www.wizards.com/default.asp?
x=dnd/oa/20001001a