"Watch for friendly fire, love." His tone was low, with a hint of resignation that hopefully only she could hear, but cryptic enough just in case. He could have simply been commenting on his faith in her dueling skills while having to duel alongside her, although she knew that wasn’t what he meant. He did have backup here, likely on the other side of those wards and the purple magic had been a signal. He had been buying them time by drawing out the conversation. 