Question about the speaker in dreams adventure module

[drewdp]

for anyone who has played these modules before:
Can I start my level 5 party into The Speaker in Dreams module without having played the first two modules?

Extra info:
I started a homebrew campaign, and everyone is just reaching level 5. I no longer have the time to plan out stuff from scratch and they just finished my first story arc.
I was thinking about using a premade and found The Speaker in Dreams starts at level 5, but its part of an 8 part series. I've never used premades before, am I ok skipping the first two adventures, as they just seem to be loosely tied together, or is there an overall plot?
I was told read through it, but I dont want to buy the pdf if i cant use it...

The different modules:
The Sunless Citadel
The Forge of Fury
The Speaker in Dreams
The Standing Stone
Heart of Nightfang Spire
Deep Horizon
Lord of the Iron Fortress
Bastion of Broken Souls

[prufock]

Speaker In Dreams is described on the back cover as a "stand-alone" adventure, so I think you're fine. Nothing in the introductory or background passages suggests you need to run the others first. However, I have not played the module (yet; I am planning to run the entire series in the future).