The comment about not willingly bringing harm to Marian did not sit well with him, and he fought hard to bite back the automatic response to it. That he'd already killed her. That if it wasn't for Djaq's skill, she would not be breathing now. But the fact of it was, whether he wanted to acknowledge it or not, he had no knowledge of where he was. And despite disbelieving the majority of Gisborne's words, the other man apparently did. And more importantly, he knew where Marian was.
He shook his head as he lowered his bow fully, slipping the arrow back in to the quiver on his back. "I always knew that there was more to your actions than simple idiocy, Gisborne. You're mad." But he was also stalling, and the longer they stood here, the longer he was kept from seeing Marian. So he would play along.
"The last time I saw you, you had taken hold of Vaizey to keep him from falling out his window after me." His tone was somewhat mocking, telling Gisborne something that as far as Robin knew, should have been obvious to him.
"Now, we have taken our trip down memory lane, you can tell me where Marian is."