This is my first contribution here and I have to admit that I´m a bit anxious! Thank you for the invitation! 
The reason why I have been invited is this: I just happened to come across something I thought could be nice and motivating for advanced students of English so I was suggested to share it in this blog. This time I haven’t thought of a lesson plan as most of the teachers who add posts do, but next time I´ll do it.
Now, have a go and enjoy it!
Welcome on board, Maribel!!
Great, Maribel. This can be your first time, but I’m sure it won’t be your last one. Welcome!
By the way, these videos are awesome.
Thanks Maribel, you know I love mysteries! I’ll give it a try for sure