The tomb of one of his state officials--a certain Merkha--contains objects and stela of very high quality; this imples that Qáa's reign was a relatively stable and prosperous period of time.
The tomb of one of his state officials--a certain priestly noble named Merkha--contained objects of very high quality. This--plus the high quality of stelas depicting Qa'a himself imples that Qáa's reign was a relatively stable and prosperous period of time.