The phrase "a surprise turn" is correct and usable in written English.
It can be used to describe an unexpected change in a situation or narrative.
Example: "The story took a surprise turn when the protagonist revealed their true identity."
Alternatives: "an unexpected twist" or "a shocking shift".
In a surprise turn of events, several former employees of A&M who worked with Mr. Clayton-Felt volunteered to take on some of those duties.
Barring a surprise turn in negotiations, third baseman Alex Rodriguez is another former Yankee, although not as dearly beloved as Torre.
Whether or not the Muslim Brotherhood wins Egypt's presidency in a surprise turn of events, their political ideology will remain a force that must continue to be fought.
The government's tax-shelter case against former KPMG employees and two other executives took a surprise turn yesterday, with one defendant, David Amir Makov, reaching a deal with prosecutors to plead guilty.
Then he makes a surprise turn into a tale of a complicated threesome: "I never was the kind to make a fuss / When he was there sleeping in between the two of us".
In a surprise turn in an already tangled trial about a voodoo ritual, a New Jersey judge has absolved a Brooklyn man of charges that he and a voodoo priest tried to kill a Haitian pop singer by setting her on fire in the ceremony in October 1997.
A surprise turned up last summer during a study of dwarf galaxies in the Virgo cluster.
(During the same show, Bono — dressed, appropriately, as the devil — called Salman Rushdie, who was then in hiding, on the phone; in a surprise twist, Rushdie turned out to be at the concert and came onstage).
So it is a bit of a surprise to turn off Hazellville Road and find yourself at the entrance of a wildlife park, complete with its own ecology and horticultural therapy centre, woodland area and nature pond.
The scene: The highlight of the show came with a surprise catwalk turn by someone familiar to many of the attendees -- the always nattily attired Nick Wooster whose professional CV includes stints as men's fashion director at Neiman Marcus and a brief tenure at the ailing J.C. Penney -- who hit the runway sporting a cobalt blue jacket and a pair of knee-length zebra-print shorts.
Another surprise turn is Jackie Florrick, Alicia's mother-in-law.
