Happy birthday my dear babe!
For your next clue you need to go where James Daunt would find himself, it's in your home, the cosiest spot in your home.
When you get there you need to look for the fourth and final work completed by a famous American. The title is taken from the poem "Ode to a Nightingale" by John Keats. From there you are looking for (my) Jon's age minus one
Hope you find your next clue :) Do you hate me yet :)