This book brings together two novels and a short story all concerning a loosely defined and articulated "Interstellar Empire". The longest novel "The Altar of Asconel"  is the better narrative.
Brunner struggles diligently to fashion a plausible future where the "Empire" is in decay and a trio of brothers restore the lawful ruler to the throne. Not a very original idea, but, nonetheless a good example of mid 60's Brunner space operas.
The other novel, considerable shorter, has an odd name "The Wanton of Argus" I prefer the original title "The Space-Time Juggler" . This is the weaker story concerning the machinations of restoring another rightful heir to a throne.There are a few nice touches but overall the tale is uninteresting and appears to have been written in haste.
The short story "The Man From The Big Dark" was found to be unreadable by this reviewer.
Surprisingly this collection has been reprinted several times; not recommended.