There were more surprises to come.
The athletic defender didn't quite know what had hit her when she arrived in Adelaide to find people on the street knew her name and would stop her to talk about netball. In England the sport was still viewed as a nice game for schoolgirls, so to suddenly have a public profile was a revelation.
"Because Adelaide is such a small town, it was very much everyone knew who you are and everyone knew all about the league and it was a bit of a shock to the system."
But it is Melbourne where Mentor has now settled, possibly for good.
About to start her third season with the Vixens, the 29-year-old has recently bought a house with her partner, "a Victorian lad", and hopes some of her family will soon join her out in Australia.
The Vixens have set their star import up with a job as a community engagement officer at Netball Victoria, working closely with multicultural groups - something Mentor, who has Caribbean heritage, is passionate about.
"The league has opened up some amazing opportunities for me, not just being able to grow and challenge myself within the sport, but also to live in a new country and get a taste of the life of a professional athlete."
Beaten finalists last season, the Vixens are one of the early title favourites this year, and with the return of wily veteran Sharelle McMahon to lead the attack, Mentor is confident her side will live up to expectations.
Having already won a premiership with the Thunderbirds in 2010, Mentor is desperate to collect another title this season - an achievement she would rate right up there with a test series win over New Zealand or Australia.