 Uaxaclajuun Ub'aah K'awiil encased the Rosalila phase under a new version of the building in the early 8th century AD.An offering was made as part of the rites to terminate the old phase and included a collection of eccentric flints worked into the profiles of humans and gods, which were wrapped in blue-dyed textiles.Structure 10L-18 is on the southeastern side of the Acropolis and has been damaged by the erosion caused by the Copán River, having lost its eastern side.