This tune is a composition of the late Paddy O'Brien from Nenagh in Co. Tipperary.
Paddy O'Brien’s tunes are often very challening, but are also very musical.
You will need to move your left hand into the third position when you reach the 11th bar. You can use the gap provided by the open E at the beginning of the bar to move into the third position, and then move back to open position for the last two bars.
This, incidentally, is the last tune in Book 2.