Two weeks later, a black SUV pulled up outside a little cafe in Llanishen. The four occupants piled out, laughing and joking. They headed inside and up to the counter.

"Alright Teaboy, you know what we like," said Owen. The young Welshman behind the counter smiled back at them.

"I've got another few minutes before my break -I'll join you soon."

Owen and Jack waited for the coffees whilst the girls found a table they could all fit at, and they sat down to wait for the fifth and last member of the group to join them.

"By the way, Owen," said Tosh. "You never did end up telling us what killed the mayfly. What was it that got you so excited?"

"Oh that." Owen had forgotten. "Turned out it was killed by something this side of the rift after all."

"What?" asked Jack in surprise.

"Yeah, little thing known as nosemosis. It's a microsporidia, normally only affects bees here on Earth, but apparently our alien friend was susceptible. It managed to pick up a bunch of spores in that short dash over the countryside, and they'd taken up residence in it's gut something vicious."

"Well, at least we'll never have to worry about a mayfly invasion," joked Gwen.

"Discussing work again? Shame on you," said a teasing voice from behind her as Ianto joined them.

"How does it feel, 'Tristyn's last day'?" asked Tosh.

"It's a bit surreal actually. I've only been here ten weeks but they made me feel so at home. It's a shame, really. In another life I could have been happy here." He looked wistful for a moment as he looked around at the little shop, before focussing back on his teammates. "But of course, this is this life, and I know where I would rather be," he grinned.

"Bet they're going to miss your coffee round here," said Jack, and Ianto laughed.

"I've heard nothing but complaints about that for two weeks straight! And they've said I have to stay back after the shop closes this evening -I think Jessie has been plotting with Meredith to have a farewell cake for me." Ianto was embarrassed but clearly pleased.

"So, Ianto, I've been curious," said Gwen. "What was the object that brought your memory back? What was your trigger?"

Ianto suddenly shifted uncomfortably in his seat, and somehow managed to look even more embarrassed. This only served to heighten the team's interest in his answer.

"Um, well, actually, it was my stopwatch."

They all burst out laughing.

"You and that bloody stopwatch!" said Owen, but only Jack really knew why Ianto had flushed so red as he said it.