Oh, damn.
Dragging several hundred spiders of every size into the Shadow Mirror World at once left Tris dizzy, even with the Deluminator helping him cheat. Like Ron, he had burned through rather too much magic in an instant.
He had felt nothing when pulling people in before, so he had assumed using the Deluminator to draw things into the Shadow Mirror World cost him nothing. Now it seemed the cost had simply been small.
Dragging too many in at once was still more than he could comfortably handle.
Fortunately, Tris was far stronger than Ron in both magical power and control. The dizziness lasted only a moment, and a shake of his head cleared it.
He fished a small bottle out of his pocket-actually out of the Portable Space-and pressed it into Ron's hand. "Drink this."
Ron trusted Tris without question. Without even asking what it was, he pulled out the stopper and downed it in one gulp. It tasted faintly sweet, and once it passed his throat, a cool sensation surged upward. The headache and dizziness caused by that sudden drain on his magic quickly faded.
"Huh? I'm better?" Ron perked up at once.
He had not actually exhausted his magic; he had simply drawn on too much of it at once. The potion helped him recover, and he was soon acting as though nothing had happened.
"What's this good stuff you've got?" Ron asked excitedly.
"Just an ordinary Invigoration Draught," Tris said casually.
When Tris had been putting Draco through his paces, Little Dragon had lacked the stamina to keep up. Tris had told him to write to Lucius and ask him to send over a batch of Invigoration Draughts.
Worn ragged by the training, Little Dragon had not dared to complain or even get angry. He