This mostly black-and-white sketch depicts some moment in William Bregan's past. With one minutes effort, you can push yourself into the sketch with a successful charisma check of 12, optionally carrying one creature with you. If you do so, you go to a temporary pocket dimension and find whoever was depicted in the portrait as echos of their past selves caught in the moment William created the sketch. You also find William Bregan creating the sketch. You can approach William at any time to exit the sketch. If you remain inside the sketch for any more than 10 minutes, the pocket dimension dissipates and you and any items you carried with you are lost forever. If you return before 10 minutes, items can be taken from the scene back to reality but they will only last 1d4 minutes.

The characters in the sketch can be interacted with but will react with great confusion. 

William Bregan can be interacted with as his past selves gradually grow used to adventurers appearing randomly in his timeline as he tries to sketch things. He has to willingly approach the party to physically interact with them (if the party approaches him, they leave the sketch). His sketch-self is a level 9 bard. He can identify items, cast Cure Wounds at level 5, Revivify or Greater Restoration (although he has no reagents on him and will need to be provided them), and is an expert on spells of the Enchantment, Illusion and Transmutation schools of magic and on the topics of the Far Realms and the Abyss. He will react favourably to adventurers who present holy symbols of a good or lawful nature, or tokens of an adventurer's guild he is familiar with.

There is a 10% chance Whisper will be in control when you jump into the sketch (rolled secretly by the DM). Whisper may react with hostility and cast Dissonant Whispers (DC19) which automatically expels the party member from the sketch, or he may attempt to deceive the party, at the DM's discretion. Whisper may willingly Revivify slain party members, but they are dominated by him and fully under his control for 1d4 days. Whisper rolls Deception checks at +11.

Once you jump into a sketch, you will take 3d10 force damage if you attempt to jump into any other sketch on the same day. If you succeed on the Charisma check you still succeed in jumping into the sketch.