During the Sixties, Chadwick experimented with a series of sculptures that used geometric shapes as their inspiration. Whilst not directly figurative, they still had a distinct Chadwick 'attitude'. “I shall never neglect humanity. Even in my most abstract figure ‘The Pyramids’ I took man as a starting point” Lynn once said to Rungwe Kingdon. Many of the abstract pieces Chadwick experimented with in the 1960s have figurative connotations; the stars can be seen as heads with a single eye and the pyramids can begin to suggest a figure or beast.

In perforating some of the pyramids, voids were created forming holes usually of tubular shape. They also carry light and our gaze through the form to the other side. The conical perforations break down the illusions and bring back the strength and simplicity of the sculpture. Gradually the forms became more explicitly human and bestial and transitional pieces such as Monitor III and Beast XXIV are the direct progenitors of the later stainless steel beasts where a variety of pyramids are combined to create a new animal form.