 What was special or impressive about Gertrude?
The Blue Behemoth By LEIGH BRACKETT Shannon's Imperial Circus was a jinxed space-carny leased for a mysterious tour of the inner worlds. With Shannon's Imperial Circus, the Greatest Show in Space, plastered so thick with attachments...." It has always been my desire to lighten the burden of life for those less fortunate...." He said, "Boss, Gertrude's actin' up again." "I'm tellin' you, Boss, Gertrude ain't happy. Beamish cleared his throat and said, rather stiffly, "Gertrude?" The only other one on the Triangle belongs to Savitt Brothers, and she's much smaller than Gertrude." Gertrude may be a little creaky, but she's still pretty impressive. The extreme rarity of the animal...."
 She was an extreme rarity.
 Her outrageous temperment  She was an extreme rarity.  Her extraordinary size and young age  She was exceptionally talented