The Chronicles of Nick
Timeline and Publication
Series By Sherrilyn Kenyon
Although Infinity is set before the start of the Dark Hunter series, there are spoilers for that series. Therefore, you might consider reading the books from both series in publication order, which would mean Infinity would be read after DH #30 Bad Moon Rising.
Read through DH #32 No Mercy.
Read through DH #35 The Guardian.
Read through DH #37 Time Untime.
Read through DH #40 House of the Rising Son