18 Chapters:

1. chapter 1: the rescue 2014-03-18 05:04:48 UTC
   151
2. chapter 2: explanation 2014-03-18 05:46:14 UTC
   286
3. chapter 3: sleep over 2014-03-19 01:30:32 UTC
   291
4. chapter 4: the party 2014-03-21 01:58:56 UTC
5. chapter 5: the advice 2014-03-25 23:28:02 UTC
   199
6. chapter 6: the date 2014-03-28 03:50:04 UTC
   420
7. Chapter 7: special somepony 2014-03-30 15:58:20 UTC
   520
8. chapter 8: new powers 2014-04-01 22:59:56 UTC
   547
9. chapter 9: the letter 2014-04-04 01:50:34 UTC
   478
10. chapter 10: the song 2014-04-04 16:44:38 UTC
    438
11. chapter 11: cutie marks 2014-04-05 04:33:47 UTC
    642
12. chapter 12: a discussion 2014-04-06 22:25:42 UTC
    490
13. chapter 13: disaster strikes 2014-04-08 05:15:10 UTC
14. chapter 14: a proposal 2014-04-18 18:52:51 UTC
    231
15. chapter 15: a Canterlot wedding part 1 2014-04-20 05:03:00 UTC
    539
16. chapter 16: a Canterlot wedding part 2 2014-04-26 03:54:18 UTC
17. chapter 17: a Canterlot wedding part 3 2014-04-26 06:29:20 UTC
    425
18. chapter 18: a Canterlot wedding part 4 2014-04-28 22:00:15 UTC
    453