A fun and interesting use of the ood's telepathic powers, showing how a single ood can be controlled by someone with some abilities, not just a hoard controlled by an extremely powerful entity.

Magic tricks are always fun, especially for me if you know how they're done, and in this case it's explained brilliantly without all that much technobabble at all. It's the sort of thing you could easily see happening if those powers existed.

The ending is also fun with 10 using his own abilities to let the ood speak a little more freely and condemn his slaver.