Looking at either of them caused a pang in his chest. Looking at both of them started a dull, steady ache.

Izzy," said Jace, as they neared the pond, and she jumped up and spun around. Her smile was dazzling.
"Jace!" She flew at him and hugged him. Now that was the way sisters were supposed to act, Clary thought. Not all stiff and weird and peculiar, but happy and loving. Watching Jace hug Isabelle, she tried to school her features into a happy and loving expression.
"Are you all right?" Simon asked, with some concern. "Your eyes are crossing."
"I'm fine." Clary abandoned the attempt.
"Are you sure? You looked sort of… contorted.

I've noticed the Fair Folk often say 'perhaps' when there is a truth they want to hide," Clary said. "It keeps you from having to give a straight answer."
"Perhaps so," said the Queen with an amused smile.
"'Mayhap' is a good word too," Alec suggested.
"Also 'perchance,'" Izzy said.
"I see nothing wrong with 'maybe'," said Simon. "A little modern, but the gist of the idea comes across.

Isabelle drifted over, Jace a pace behind her. She was wearing a long black dress with boots and an even longer cutaway coat of soft green velvet, the color of moss. "I can't believe you did it!" she exclaimed. "How did you get Magnus to let Jace leave?"
"Traded him for Alec," Clary said.
Isabelle looked mildly alarmed. "Not permanently?"
"No," said Jace. "Just for a few hours. Unless I don't come back," he added thoughtfully. "In which case, maybe he does get to keep Alec. Think of it as a lease with an option to buy."
Isabelle looked dubious. "Mom and Dad won't be pleased if they find out."
"That you freed a possible criminal by trading away your brother to a warlock who looks like a gay Sonic the Hedgehog and dresses like the Child Catcher from Chitty Chitty Bang Bang?" Simon inquired. "No, probably not.

I have a plan."
He groaned. "I was afraid of that."
"My plans are not terrible."
"Isabelle's plans are terrible." He pointed a finger at her. "Your plans are suicidal. At best.

WHY DOES THIS KEEP HAPPENING?" There was a sound of shattering glass, and they both sat up to see Alec glaring at them. He had dropped the empty bottle of wine he had been carrying, and there were bits of sparkly glass all over the cave floor. "WHY CAN'T YOU GO SOMEWHERE ELSE TO DO THESE HORRIBLE THINGS? MY EYES."

"It's a demon realm, Alec," Isabelle said. "There's nowhere for us to go."

"And you said I should look after her-" Simon began, then realized that would not be a productive line of conversation, and shut up.