Valkyrie stepped sideways to avoid its grab. She went to the chair, righted it and sat with a groan. She worked at getting her breathing under control as she watched the Hollow Man change direction and crawl over. By the time she was taking deep breaths again and her eyes had stopped watering, the Hollow Man’s flat, outstretched fingers were centimetres away from her foot. It had stopped moving.

Valkyrie stood and spat, trying to get rid of the foul taste in her mouth. She crossed to the door and opened it, making sure there was no one around, and eased out. As she hurried down the flame-licked corridor, she felt the pain, but ignored it, just like she ignored the part of herself that wanted to hunker down and cry. She focused on the other part, the part that revelled in her triumph. Another fight that she’d won. Another battle where she hadn’t died.

She moved through the junction and found stairs leading up. She listened for a few seconds, made sure no one was going to surprise her, and ascended. The stairs curled around a thick column of stone like a vine around a sapling. Valkyrie reached the top and kept moving in what she decided was a southerly direction. She came to a corner and Billy-Ray Sanguine rounded it.

He looked at her for a moment, a little surprised, like he couldn’t quite place her, and then that white-toothed grin came, but by then she was running the other way. She heard him laugh as she barrelled through a door.

There were shouts now, from all over, and she heard running footsteps, the echoes rebounding along the stone. Valkyrie came to another set of stairs leading up and took them three at a time. There were two Hollow Men at the top. They reached for her, but she slipped by them. She reached a corridor with a window at the end and piled on the speed, hearing someone behind her. Beyond the window was a room, its light spilling through into the darkness. The walls of this room had tapestries. She saw a chandelier. It was the castle’s main hall. Which meant that this wasn’t a window – it was a mirror.

Valkyrie jumped, curling into a ball as she hit the glass. The world fragmented with a crash that filled her head. The main hall was lower than the corridor and she fell through the air, shards of mirror falling with her. She slammed to the floor and rolled, crunching the glass beneath her. She caught a glimpse of Skulduggery and then he was beside her, helping her up, and Ghastly, Fletcher and Shudder were running in.