Gelatin's exhibition “Loch,” and the week-long performance that preceded it, form the basis for this book. The catalogue comprehensively documents the Austrian art collective's elaborate site-specific performance at the 21er Haus in Vienna (June 5–September 29, 2013). The four artists, together with a group of friends from around the globe, wrested amorphous sculptures from the massive Styrofoam cube located in the middle of the museum. Before an audience, and accompanied by music, food, and drink for all, the performers spent the week digging, quarrying, and rappelling down the vast block, using the hollows dug out as molds for sculptures, which little by little filled the room. The catalogue visually records the transformation of the 21er Haus into a hybrid museum, studio, stage, residency, and exhibition space, and includes texts about the artist group, their artistic strategy, and this remarkable exhibition project.