You Are It

You Are It is an intermediate bottle quest released on 8 May 2018. It has no requirements and has been developed by Mod Osborne, Mod Erator, and Mod Daze.

Starting out
To start the quest, head to McGrubor's Wood and chop a specific tree in the south-west section of the area. It is a normal tree, not an oak tree, and contains a hidden clue scroll. Upon chopping it, a short cutscene plays where a double agent will appear and give you a mysterious clue scroll. Read the clue scroll to accept the quest.

Mysterious scroll
The mysterious scroll appears to contain only the word "URIT" repeatedly, however, several of the words end in a letter other than T. Reading only the letters that are different spells out "RELDO". Go to Varrock Palace to speak to him.

Reldo
Speak to Reldo and he will warn you that those with the clue scroll disappear and never come back. He signs it, and then it can be read again for a clue which reads:

Go to Lumbridge and locate Duke Horacio, who can be found upstairs in Lumbridge Castle. Carry out the instructions on the scroll: un-equip all your items, use the cry emote, then the panic emote. A spark of energy will be released from the clue scroll after the first emote, and after the second you will enter a cutscene with the double agent and several ripper demons. A second cutscene will then play involving Duke Horacio and Uri. After both cutscenes, the clue scroll will update.

Gravedigging
You will receive another clue which is:

Head to the location, which is in the Lumbridge cemetery, and dig to the west of the southern-western light. You can dig by right-clicking your clue scroll like a normal Treasure Trail, there is no need to bring a spade. You will enter another cutscene, with Uri opening a chest full of letters, rags, and other useless items. Eventually, he finds some obsidian jewellery. You will then find a locked casket, and your clue scroll will be updated.

House call
Check your scroll and you will find a map, which details the surrounding area of Rimmington. Head to the player-owned house portal there and enter it. After another cutscene, your clue scroll will update. Read it again for another clue:

A trip to Draynor
Head to Draynor Manor and locate a bookshelf inside, in the north-west corner of the first room to the west of the entrance. You will get a casket key. Use it on the locked casket in your inventory to receive an old necklace. Your clue scroll will update with a new clue. This time, it's a scan clue, which can be activated by right-clicking the scroll and clicking 'Scan'. If you don't have a rope yet, you can now go into Draynor Village and buy some from Ned for 15gp or 4 balls of wool.

Mysterious hole
Like a normal scan clue, you need to follow the direction of the arrow to find the location of the clue. The clue points back to the quest's original starting location, McGrubor's Wood. Head just south of the house there, two steps south of the crate, and dig. This will reveal a mysterious hole, which you can add rope to in order to go down. Descend into the hole.

Follow the passage around to the north-east and investigate a coffin. You'll enter another cutscene with Uri speaking to Charos. He makes three wishes, the ground shakes, and he is pulled into the earth. Speak to the double agent, who will explain what happened, and when you're ready to proceed ask what happens next then leave the dialogue.

Walk a few spaces east to the mantle and investigate it, then destroy the stone statue. You will obtain a puzzle casket and enter another short cutscene. Speak to Uri when it is over to complete the quest.

Trivia

 * The list with names that points the next person to die is a reference to the comic series.
 * Upon inspecting the cursed clue scroll a final time, a reference to the third installment of the Harry Potter series is made. The statement before the scroll disappears says "It's mischief has been managed," referencing the Marauder's Map in Harry Potter which would go blank when someone says "mischief managed."