Valerion smiled, and another ball of darkness appeared around his open hand; then he flung it - Adrien watched it move towards him as he spun his circle, clinging with all of his might to the thought of himself in his room, of his book in his hands, of the smell of paper, of the summer wind against his skin; he closed his circle, but the darkness went past the boundary, giving him another shudder as it clustered around his body and dissipated.
"I thought this would work", Adrien commented, disheartened.
"What did you think of?", Valerion asked, his voice soft.
"I thought about reading in my room", Adrien replied.
Valerion seemed to be deep in thought for a while. "That seems rather safe", he said. "Was your image clear?".
"I -- I thought so".
"Perhaps you only need to focus more. Would you like to try with the same thought again?".