Stephen Strange was convinced that, any second now, the remaining Asgardians might show up on Earth. His cloak moved around his shoulders as he set his cup of tea down, right next to a book about safety measures while traversing the astral plane between dimensions in the multi-verse. He turned and opened a portal that was as close as possible to the current target of his spell-work, which happened to be in an grimy back alley that the warrior had just stalked past.
He stepped through it and started walking at a brisk pace, trying to match her stride.
"Lady Sif," he called out, nearly catching up with her, but keeping a respectful distance. A distance that was respectful of the reach of her weaponry. "Welcome to Earth. Or New York City, to be more exact."