Heimdall said nothing more as he left the Observatory, sealing it off from those wishing to harm the city. Hela. That monster was still out there, biding her time until who knew when. They were still nowhere near ready to face her, and although Thor was feeling more spirited upon returning home, he was nothing without Mjolnir in his hand. That needed to be rectified for Loki knew not how to tackle Hela on his own and he had no plans of handing himself over. Hermione may have cast him out, but he held no love for the Goddess of Death and did not wish to spend any time in her company.