Another complication emerged from the holiday booking.

Ethan, Mark’s cousin, had joined the group with his family.

His tickets had been purchased through a charge that appeared on my supplementary account, although I had not agreed to cover them.

When interviewed, Ethan said he believed Chloe had received a holiday bonus and was treating everyone.

His statement was uncomfortable but useful.

It narrowed the question of who knew where the money originated.

I did not want innocent people punished simply because they had enjoyed a trip paid for by somebody else’s dishonesty.