A powerful staff and a green eyed monster

Leaving Liliana to investigate her scrolls, Shadow investigated a nearby wall and found it wasn't solid, so they smashed it down and released someone called Casseiopia who said they needed their help to rescue her husband, by killing another mummy, she said she would reward them with a wish.
 
Joined by someone called Emin who liked like a human trying to be an elf, carrying musical instruments. Shadow was happy to set about doing this, and did so, revealing more scrolls, they also found a treasure room and a staff and various bits and pieces. They went to fetch Liliana to check out everything they had seen. The more they saw, the more it reminded Liliana of Paxander, pre the elven purge.
 
Shadow introduced Emin to Liliana, who greeted him briefly then went to investigate a staff that Shadow pointed her too, inside the sarcophagus they had discovered. On investigation, the staff seemed to have leaves and branches craved in it in an arcane elvish script that came together in an eldritch gem. Unable to red the language, Liliana immediately sat down and began to ritually cast comprehend languages.
 
Shadow did a backflip. Emin played a tune, a captivating performance that impressed Liliana. She hummed along as she cast.
 
With her spell finished, Liliana stared at the staff and a smile stretched her face, her eyes glowing as she felt the arcane flow through her. Moving to look at the scrolls she found:
 
Potion vial within coil of scrolls animal friendship
A rope that seems to coil itself. Innocuous yet intriguing. A rope of climbing, which she offered to Shadow.
A potion of hill giant strength.
Oil of slipperiness attached to a scroll of pass without a trace which she gave to Shadow
A potion of water breathing
Another potion of hill giant strength, which Shadow took
A potion of growth which Emin took
An immoveable rod which Emin took
A scroll of water walk
And finally a scroll of haste which Emin took.
 
Looking up from the haul, Liliana realised that Emin had made a moustache using a disguise kit and had slapped it on his face.He also spoke in a deeper voice. Shadow was confused.
 
Shadow showed a sword to Liliana that had a script on he couldn't read. The text seemed to move and dance into him. She suggested he try to connect with the sword. After a little confusion, she got Shadow to sit still and focus on the sword and attune to it. Emin attuned to an instrument she had found.
 
Once they had all done this, they realised they had gained the ability to communicate telepathically with each other.
 
They moved to the treasure room to see what loot lay there. Plenty gold, a chest and a plaque. The chest turned out to be a mimic, which grappled Shadow, Emin rushed to help him. Recognising mimics of old, Liliana rolled her eyes, as if to say 'not this shit' and firebolted it. Shadow and Emin both stabbed at it and it glooped to the floor, dribbling in its death throes.
 
Emin tried to degloop Shadow and Liliana joined, using her mage hand to throw the gross gloop on the floor with hideous wet sounds. As the mimic sloughed off, a chest was revealed inside it. When Shadow investigated it he found it trapped and locked. Emin played a ditty to inspire Shadow as he set to work on the lock, even though his thieves tools were damaged he made light work of the trap. Liliana suggested Emin play, then silvery barbsed him in order the magically enhance Shadow and he picked the lock effortlessly. The box began to glow, so Shadow said,
 
"Move back, move back!"
 
When nothing happened, Shadow flipped open the box but in his edginess he didn't lift the lid properly, it dropped closed again. Emin stepped up to lift the lid, flung it open and then darted back, seeing only a satin pillow inside. Relieved nothing had happened he moved forward to see a huge crown inlaid with blue and green seaglass like gems, jewels of the sea. Five gemstones connected by platinum silver gold, white gold, electrum all in filigree. He tapped it with his rapier but nothing untoward happened. He touched it with his finger gingerly. He felt a thrum of arcane power coming from the crown. He raised it to his head, but it was huge, so he lowered it over his head intending to sit it on his shoulders. Immediately his mind felt enclosed as if the walls drew in and the others were rushing away. The crown contracted in size to fit his head. He felt suddenly very charismatic.
 
"How do I look guys?"
 
"Shiny." Said Shadow. Emin's eyes were glowing, faceted like crystals. Liliana looked on jealously.
 
"I look fabulous." Emin said.
 
Under the cushion the crown had sat on Liliana found 600 electrum pieces but they were clearly from an ancient civilisation, showcasing different rules, over many different decades. Nosing through the chamber Emin also found several jewels that seemed to be valuable.