Tinkerdown was a member of the '94 Mountaineers and friend of Augernon. He served as the 'admissions' representative for the Mountaineers.
Like Eaves, Tinkerdown served as the 'welcome wagon' for incoming Mountaineers. It was his job to onboard new recruits and get them on what Augernon called the 'fragment chain' - the official '94 Mountaineers puzzle solving email chain. Before recruits could be accepted, they had to be approved by Tinkerdown.
Tinkerdown was mentioned in Martin Rank's post "The Quiet," during the time between Phase Two and Phase Three. Martin mentioned that he did not know Tinkerdown personally, but had heard of his name .
While recruits talked to Augernon in Fragment Thirteen, he mentioned Tinkerdown from time to time. Augie stated that he had to go through Tink to get recruits on the chain, but ultimately started sharing information after Tink didn't respond to his request. Later, Augie mentioned that Tink had received strange phone calls, "just quiet on the other end, but he said he could feel someone there, like the energy of somebody on the other end, listening. And then the power in his house blew."
After the '94 Mountaineers were attacked by The Churning Storm once they reached Fragment Twelve, Tinkerdown's fate is unknown. It is likely that he was destroyed or otherwise disappeared by the Storm.