Speaking after sealing the move, Mace admitted the whirlwind nature of the deal had barely registered.
“It hasn’t really sunk in yet. It all happened so quickly but I’m really happy to be here,” she told BBC Sport.
The midfielder revealed that conversations with Everton boss Brian Sorensen were instrumental in her decision.
"When I spoke to Brian Sorensen, it was about the style of play and the ambition of the club," she added. "Also, just being able to showcase what I can do in a team that, feels to me, like it could be a level up. That's what I need in this point in my career to push forward."