Before the Nightmare Barrier.
Everyone saw Aske walk over, pause for a moment, then turn back around.
"All set," Aske said calmly, "Too simple. You guys teleport back to Fire Island, and I'll get you through this without a scratch."
"What about this book, though?" Medea took out the Ancient Book, "Should you come back for it first, and then we teleport in, and you carry the book over?"
"No need to complicate things; that would mean touching the Nightmare Barrier again," Aske pulled a hook claw with a rope out of thin air, "Just put the book on the ground."
"Teleport in."
"Then I'll drag the book over, and that's it."
The girls: ......
Conceptual weapons are really handy, even able to produce something like a hook claw.
So, everyone went to Fire Island with the Banshee Queen, granting her a certain level of trust, considering only Miel could bring her over.
Aske threw the hook claw, landing it precisely behind the book, then he jerked and pulled the rope.
Hooked.