The Doctor had Adric take the east side, assissinged the west for Nyssa to comb over , while he and Teagan took the north and south portions; telling them not to leave even a single stone unturned.
After Adric had sheepishly confessed to dropping the key the Tardis somewhere on the tracks he let the boy have it. Yelled. Scowled. Even said a few curse words, all the while Adric avoid eye contact, the Doctor was sure he was hiding the few dropped tears. The Doctor knew it wasn't really Adric's fault, he after all gave the key away. There were spare keys, several dozen in fact, but all locked inside the Tardis.
"I found it!" He and the girls run towards Adric, smiling proudly. He was glad it was him who got to be the hero.
