Kevin nods uncertainly. "Uh, thank you very much," he says to the boy, still trying to remember how teleportation works. Was this the quantum physics variety or the Shardic variety or another variety from another of the Doorways?
He sincerely hoped that eating a couple of the hive mind spiders earlier hadn't counted as harm and starts quickly opening and closing Doors, hoping one will lead to somewhere...less actively attempting to murder him, then regrets this decision when one opens into an active volcano. He quickly shuts it and abandons that strategy, as for all he can tell, the spider seems patient.
He then has what might be an epiphany, or just a stressful day. "Wait. You said I stole everything. Are you talking about the Sandwich?"