They didn’t know much about it, just that it was alien and lurked in the lower levels. It had been there since before Jack was ‘recruited’.
Torchwood’s records said it had been captured back in the 1880s, and had escaped shortly after being brought back to the Hub. No one had ever been able to re-capture it, though many had tried over the years, laying various kinds of traps. It was rarely seen, and mostly forgotten about.
Ianto smiled as he watched the glowing blue three-foot long worm sipping coffee from a saucer. Jack was never going to believe this!