Reclusive comic strip artist Bill Watterson (he of Calvin and Hobbes fame) emerged from retirement back in June for a surprise collaboration with Stephan Pastis.
Now, The A.V. Club reports, you can own one of those three original strips for Pearls Before Swine (although you’ll need more than $2,000 just for the cheapest one). The online bidding via Heritage Auctions runs through August 7, when some diehard fans will emerge victorious with Watterson-signed original artwork. For his part, Watterson has pledged to donate the proceeds to the Michael J. Fox Foundation for Parkinson’s Research.