Poor Tony's Withdrawal and seizure (p. 300)
Then, wholly friend- and connectionless, Poor Tony, in hiding, began to Withdraw From Heroin. Not just get strung out or sick. Withdraw. The words echoed in his neuralgiac and wigless head with the simply most awful sinister-footsteps-echoing-in-deserted-corridor quality. Withdrawal. The Wingless Fowl. Turkeyfication. Kicking. The Old Cold Bird.
Context
The dread-litany that opens the descent, after Lolasister's hepatitis and October's heroin drought leave Poor Tony with no one to cop through. Addiction-recovery's anchor passage first, but it plants both seeds the time-sequence grows from: the deserted corridor (which two pages later "time itself seemed" to be) and the Old Cold Bird (which becomes time squatting on the stall in person). The setup, not the phenomenology.