She has a tumor that is blocking her digestive system, and Allison is desperate to save her.
If you would like to help, there are a few ways you can go about it. On her blog, she has listed several original artworks she has on hand and is offering at discounted prices. If you buy one of the available pieces that Allison has at Thinkspace, they will give 100% of the proceeds to Allison. You can buy a print or a copy of her book of sketchbook drawings, Flotsam. And if you just want to chip in a few bucks, you can do so at the donation site one of her friends set up, Save Ludi. See if there's anything you can do, even if it's just to spread the word — the little fella is Allison's muse and she would be lost without her.
UPDATE: We've raised the funds for Ludwig's operation! Best of luck to Allison and Ludi!