Ismael's Problem

Ismael visits a one-floor castle with 64 rooms connected as described in the image below. He starts in the bathroom (the black square) and since he feels sooooo relieved he wants to visit the 64 rooms using only 15 straight lines.

Would you be able to help Ismael and draw a path for him starting at the balck square and using only 15 different lines ( without removing the pencil from the sheet) so he manages to visit the 64 rooms?

Watch it: You MUST start your trip from the black spot, but you can finish it wherever you want. Notice there’s one missing connection between two towns at the bottom of the drawing. 

Deadline: October the 11th

Printable Version available.

Have a nice weekend and enjoy "Fiestas de" Villava!

Alcazar - "Crying at the Discoteque"

PS: Only Monica sent an answer... Therefore, she deserves a positive!