The lost fortress (Afina, Jaela; 85 days left)

[Corwin]

"Just one more," Jaela admits in consternation. "It's never come in handy before!"

[Anastasia]

"Unfortunate," The Master murmurs. "Then perhaps where a single strike failed, concerted force will see the day through?"

[Ebiris]

"It's alright, I can summon help," Afina says, casting a slaad-summoning spell.

Summon Monster X for 1d4+1 blue slaads, they get passwall as an at will SLA
[20:00] <@Ebiris> roll 1d4+1 blue slaads
[20:00] <Serith> Ebiris roll for Serith < 3 > [d4=2]

A trio of giant blue frogs appear at her command! "Make a path through that blockage," she instructs, receiving ribbits and compliance in reply!

They have CL 8 passwall so one casting gets through 20 feet and they can keep casting to go further if needed.
They'll be around for just under three minutes so lets hurry along to try and get good use out of them.

Spoiler: ShowHide

Afina 329+20/329
active spells: glaciante's spiteful ward (CL 29 attached to epic mage armour), heroes feast (CL 20), mind blank (CL 17), fortunate fate (CL 15), planar tolerance (CL 7), epic mage armour (CL 27), many moments of prescience (CL 29), greater heroism (CL 25), afina's perfect vision (CL 27), shield (CL 27), recitation (CL 30), sublime revelry (CL 31), death ward (CL 30), good hope (CL 30), interplanar telepathic bond (CL 26)
defences: AC 98 (touch 62), spell resistance 42, immunity to fire, water, earth, cold, disease, poison, fear, mind-affecting, critical hits, negative energy, death effects, half damage from melee/ranged attacks
perceptions: blindsight 200, low-light vision, darkvision 60, all-around vision, see invisible/ethereal, spot +70, listen +70
spell slots: 5/9/10/10/7/9/5/8/8/8/6/2/3

[Anastasia]

The slaad appear as commanded, only one needed to open the way to the stairway, which continues with a gap in it from the wall.

[Ebiris]

"Follow us," Afina orders the slaad, flying along through the opened passage and continuing down the stairs. She hastes everyone to pick up the pace so she can use those slaad to deal with more obstructions as they appear without needing to expend another spell on summoning more.

CL 27 haste

Spoiler: ShowHide

Afina 329+20/329
active spells: glaciante's spiteful ward (CL 29 attached to epic mage armour), heroes feast (CL 20), mind blank (CL 17), fortunate fate (CL 15), planar tolerance (CL 7), epic mage armour (CL 27), many moments of prescience (CL 29), greater heroism (CL 25), afina's perfect vision (CL 27), shield (CL 27), recitation (CL 30), sublime revelry (CL 31), death ward (CL 30), good hope (CL 30), interplanar telepathic bond (CL 26), haste (CL 27)
defences: AC 99 (touch 63), spell resistance 42, immunity to fire, water, earth, cold, disease, poison, fear, mind-affecting, critical hits, negative energy, death effects, half damage from melee/ranged attacks, 50% miss chance, freedom of movement
perceptions: blindsight 200, low-light vision, darkvision 60, all-around vision, see invisible/ethereal, spot +70, listen +70
spell slots: 5/9/10/9/7/9/5/8/8/8/6/2/3

[Anastasia]

Is the passwall at will?

[Ebiris]

Yes

[Anastasia]

Four more blockages are bypassed until you reach deeper within. The end of the stairs lead into a small room with a door leading further along. A door of solid metal - adamantine if you don't miss your guess, and covered in glowing symbols an runes.

[Ebiris]

Afina takes a moment to decipher the runes!

[18:08] <@Ebiris> roll 1d20+47 spellcraft
[18:08] <Serith> Ebiris roll for Serith < 67 > [d20=20]

[Corwin]

Jaela swaps weapons just in case, ready to break it down after a dispel once Afina's decided on their path.

[Anastasia]

The door is heavily reinforced, set to go off in an alarm spell if it is touched on this side or attacked in any way and heavily shock any creature that goes through it ethereally.

[Anastasia]

Oh Cor, are you on mobile on your day off? You haven't been around, busy or just away and I forgot/wasn't told? I was wondering.

[Ebiris]

"The runes ward against ethereal travel, and sound an alarm if it's touched," Afina reports. "One moment while I check for more mundane traps, as there's nothing to stop us breaking through so far..."

[18:13] <@Ebiris> roll 1d20+47 search
[18:14] <Serith> Ebiris roll for Serith < 50 > [d20=3]

[Anastasia]

Oh, there are. Needles that jut out from the handle, as well as the door keeping a pressure plate down. You aren't sure what it'll do if triggered, but it can't be good.

You can also tell this is new work - definitely not part of the fortress as it normally is.

[Ebiris]

"Pressure plate under the door, as well as needles in the handle," Afina reports. "I think this was added by Apasa, it doesn't match the rest. Lets see if we can work around it," she decides, ordering one of her slaad to dig a passwall down through the floor in the middle of the room.