In Deep explores ideas of impermanence, memory and loss with works speaking to notions of deep time, as suggested in the materiality of marble, charcoal and pigments, and the emotional impact of swift destruction. This work has been an ongoing collaboration between Griffin and Coss, initially conceived as an east/west exchange and conceived as both highlighting the artists’ individual works as well as interactive pieces. Performative works planned to take place within the gallery space were reluctantly abandoned - the fate of the exhibition uncertain due to Covid lockdowns, with Griffin stranded in Sydney. These performative works have now been reimagined as a true east/west collaboration mediated through screens rather than in person, with instructional, sonic and performative elements based on intuition and trust. Coss and Griffin each explore concepts of deep time referencing landscape and/or place through their use of materials, and evoking aspects of impermanence and transformation. While Griffin challenges concepts of permanence and heroism often associated with memorial culture, Coss elicits aspects of impermanence through her encounters with landscapes on the precipice of transformation.