“We need to learn more,” Erica decided. “Something like this must have happened before. Let’s go.”
“I think I should be safely invisible for everyone else,” Libby agreed. "Unless we meet another seer like Mark."
“I'm not a seer," Mark said. "And besides, the library closes at four on Wednesdays. We won't have enough time.”
The two girls stared at him uncomprehendingly.
“Who said we’re going to the library?” asked Erica, starting to laugh.
“But you said we need to learn more,” Mark said.
“The information we need isn’t in the library.”
“But,” Mark protested, “that’s what they always do in books. There’s a mystery so they go to the library and find a document that’s hundreds of years old with all the information they need about the creepy house or the family that was murdered hundreds of years ago in a graveyard, or the legends of headless horsemen and headless horses that ride around on moonless nights.”
"You didn't see a headless horseman, you found me," Libby said. "And I can tell you all those legends. Once, about four hundred years ago, a young handsome man was out late. He was in love and because he was in love, he wandered along empty roads, thinking of bad poems to write all about how beautiful her dark hair was and her green, green eyes, and her small, pretty ears–”
“Let’s save the storytelling until after we find out why you can’t see Mark’s death. I think my aunt’s making fish and chips tonight. Do you want to come over for dinner Mark?”
Mark’s answer was drowned out by the final bell, which seemed to reverberate particularly loudly up the chimney, sending out another tiny puff of soot.
“Great,” Erica said, walking to the edge of the roof. “School’s over.”
She looked over the edge and began clambering down awkwardly.
“Wait, I’ll help,” Mark said, running over. “Couldn’t you just magic us down or something, Libby?”
“I’m a banshee,” Libby complained, “not a magician or a witch like your friend here. Why don’t you ask Erica?”
“You’re a witch!” Mark shouted.
“If you could just shout that a little louder, then I’ll be entirely ostracized,” Erica said sarcastically. “Now help me get down.”