Cut a length of thread and thread on a calotte and crimp bead. Take the thread back through the calotte, leaving a short tail. Squash the crimp bead and close the calotte. Attach a jumpring to the end of the calotte.

See here how to do this - https://www.youtube.com/watch?v=2lizgLZDG8c&index=5&list=PLD956813C5C14087E

Thread on 14 pearls, then one silver spike. Alternate between pearls and different spikes until your have seven spikes altogether with pearls in between. Finish with 14 more pearls.

Thread the fireline through a calotte and crimp bead and finish the strand like your did at the beginning. Attach a lobster clasp to the calotte.