Who wrote this science fiction short story and where can I find it again? The older brother is in training to be a dragon rider, but the dragon chosen by the school admins had his third eye damaged in battle, so he can't navigate thru space. The younger brother is training as a healer (although he's not aware he's been formally apprenticed to the healer he works with), and has a pet, despised by most, called (I think) a foogle or something similar. At the end he goes with his brother to the dragon training school for the older brother's senior trial, and he and his pet foogle? enable the dragon's third eye to work and the trial is successful. Thank you for your help! It was in a book of short stories but I don't remember the title or the editor or the author of the story.

Who wrote this science fiction short story and where can I find it again? 

The older brother is in training to be a dragon rider, but the dragon chosen by the school admins had his third eye damaged in battle, so he can't navigate thru space. The younger brother is training as a healer (although he's not aware he's been formally apprenticed to the healer he works with), and has a pet, despised by most, called (I think) a foogle or something similar. At the end, he goes with his brother to the dragon training school for the older brother's senior trial, and he and his pet foogle(?) enable the dragon's third eye to work and the trial is successful.

Thank you for your help! It was in a book of short stories but I don't remember the title or editor or author of the story.