Decisions, decisions
OK, I've given the matter some thought and decided on the encounter. The "shrine" is on the outskirts of a city, posing as a shrine to Mortis, LN god of Death (but very few active worshippers, which is how the subterfuge can work) but is in fact a secret temple of Evancthe, the NE god of Undeath. The characters have learned that the temple has recently purchased slaves amongst which there may be a friend of theirs that they want to rescue. That should make them suspicious of the temple even though there's little outward evidence of wrong.
The encounter is likely to happen in two steps :
a/ on the surface, if they're suspicious enough to start a fight, they will face a Cleric 5 and his "acolyte", a leprous ogre who is in fact a Zombie Ogre designed with the WotC template. Here are the stats for whoever is interested :
HD 8d12 +3 (55 hp)
Init -2 (Dex)
Speed 30 ft
AC 15 (-1 Sz, -2 Dex, +5 nat, +3 hide)
Atk Slam +10
Dmg Slam 1d8+9
SQ Partial actions only
SV Fort +2, Ref +2, Will +6
Abilities STR 23, Dex 6, Con -, Int -, Wis 10, Cha 1)
Feats Toughness
b/ once they've defeated these, or if they come back at night (in case they will face this welcome party together with the rest), they may find a secret passage to the real shrine below, protected with an Alarm spell.
Down below they will find a Wizard 5, and Conjuror 3 and a 8 human zombies.
Considering the average party level is 5 and the party has three members, and also considering this will likely be their first fight for a while, so I want it to be tough, do you guys think they can pull it off ? I'm willing to face one character death, but wouldn't want to wipe them out...