You head right for a pile of chests and crates and push hurriedly through them, spilling precious metals and ornamented weapons across the silk floor until you find the case that glows with malign light, and before you realize what your fingers are doing you've opened the clasps and thrown the lid open.
[Bewitchment again: Piety, 15+26+20(Windsage)-10(Again)=51.]
You stare at the deep red liquid that bubbles softly within the embrace of the chalice, suddenly thirstier than you've ever been in your life. It seems to whisper to you, speaking of the gradual transformation that began twenty-five years ago when you first channelled Ulgu into your soul, and how much it could accelerate your ascension. If your Magesight wasn't quite so potent, if your soul wasn't already claimed, you might already be drinking. As it is you stand transfixed, torn between two equally overpowering urges: to embrace and to reject the Chaos Gods from whom your magic ultimately flowed.
I believe somebody asked what would have happened if Mathilde drank from the chalice a short while ago. To those curious, these are the effects of the Chalice on Chaos Followers on the Tabletop:
D6 Result
1 Unworthy Fool: The imbiber immediately suffers a Wound, with no saves of any kind allowed.
2 Inhuman Speed: The imbiber gains the Always Strikes First special rule until the end of the turn.
3 Regenerating Flesh: The imbiber gains the Regeneration special rule until the end of the turn.
4 Dark Fortune: The imbiber gains a 5 + ward save until the end of the turn.
5 Daemonic Strength: The imbiber gains the Killing Blow special rule until the end of the turn.
6 Final Transformation: If the imbiber is already a Daemon Prince, he instead treats this result as Unworthy Fool. Otherwise, he must immediately take a Leadership test. If passed, he is gifted with Daemonhood, as described on the Eye of the Gods table on page 25. If failed, he is gifted with Spawndom, as described on the same table.
Now, I think a few things need to be mentioned. First, these are the effects of the Chalice on a follower of Chaos, it's very possible that drinking from it would have mutated Mathilde first before granting whatever "gift" it was going to. Knowing Boney, they'd follow the rules for mutation in Tome of Corruption and give Mathilde a roll for Toughness to determine how she could handle it and if she could resist it.
The second note is that this is a Tabletop item, which is why the majority of these effects are only until the end of the turn and not permanent. The Chalice is worth 10 points, it's absurdly cheap in terms of point cost, so it makes sense that its effects aren't super powerful unless you roll a 6. You could only use the Chalice once on the Tabletop.
Of those results, aside from Final Transformation, I imagine Ranald would take most offence to Dark Fortune.
