You focus your powers of observation on a payment voucher:
Item 'a payment voucher' is type parchment, alignment 0, made of paper (in (new) condition),
has keywords 'payment voucher small sheet paper'.
This item weighs 0 stones and 1 pebbles, and is valued at 48,801 gold. {Cat. 6}
This level 241 item has the attributes: nomail no-container unbreakable no-rent vanish-if-dropped unlockerable
Most modern, global businesses rely on a complex payment system to pay their
employees wages. Despite the frequent usage of imps and other magical
technology, only mathematics can solve finances. This voucher can be
redeemed at the neat little bar at the side of the Grand Ballroom in the
Hotel Hello.
Hold and use the voucher at the bar as mentioned in the description (near the toilets). You will be teleported to Bevidath's room and combat will begin immediately.
Take note that the rooms are no-form, no-regen. Take off spells that train vitals especially st ones (unnatural strength). You don't want to kill Bevidath, move into the chest room and suddenly realize you're at 0st!
Silences you real quick so try to land slow ASAP. Then try to spam as many dmg spells/actions such as bash before you get blinded. She will blind you but don't panic. She doesn't have much HP so just hope for the best that she dies before you.
On body: Scroll of Requiem, a tarnished black key
Chest east of her that requires a tarnished black key to unlock: Solid gold spheres, a pearl tailspike, the breastplate of Rhazminiki Yex.
If you want to kill vebidath, repop time of bevidath is around 23min