This is a teeny-weeny paperchase in the middle of Euston station. It is really useful if you forgot to buy a birthday/thank you/mothersday card as you can grab one before getting onto the train. They have a fairly large selection, but they are often a bit expensive(mostly over £3 but £4+ for a posh-ish card) I have been here quite a few times and the staff always seem grumpy or moody. I guess that’s what happens if you’re surrounded by stressed out commuters all day…