"No, you couldn't. You have to rest, remember?" Telrim keeps her tone cheerful, her amusement private, and glances at Mikoto. If Telling him they have it might inspire some foolish attempts to get it back; not telling him so might make him desperate with fear.

But lying about it would run counter to her own cover, so she adds, "But maybe when we know you won't pass out trying to use it..."