Send the Signal!

Use the mount [npc=140566] near the questgiver. And observe the fleet.
Don't forget to take the windrider when you get on the Isle of Fangs.
You can also pick up Spoils of Pandaria part of the Treasures of Zuldazar

Send the Signal! quest video: https://www.youtube.com/watch?v=t4dr8Z1eWro
This quest is part of the Zuldazar Isle of Fangs questchain. All Zuldazar quests: The Throne of Zuldazar <= more info inside

ID

#

Quest

Quest Chain

Questgiver

Subzone

Video

90

Sending Out An SOS

Isle of Fangs

Baine Bloodhoof

Dazar'alor

https://youtu.be/9uE6hz0fX2c

91

Send the Signal!

Isle of Fangs

[npc=140590]

Port of Zandalar

https://youtu.be/t4dr8Z1eWro

92

Key to the Brig

Isle of Fangs

[npc=135576]

Isle of Fangs

https://youtu.be/78prOJPJb2U

93

Not "Only Zul"

Isle of Fangs

[npc=130821]

Isle of Fangs

https://youtu.be/DTV4FXyCUiA

94

Against the Tide

Tusk Isle

[npc=130821]

Isle of Fangs

https://youtu.be/CP-qDm6nxbs

95

Destroy the Weapon

Tusk Isle

[npc=130750]

Isle of Fangs

https://youtu.be/rW8giSxw6nI

96

Hope's Blue Light

Tusk Isle

[npc=130833]

Tusk Isle

https://youtu.be/_yQKxH2sHFQ

Id column is approximate quest № In Zuldazar storyline The Throne of Zuldazar <= more info
# is additional ordering info. Can take multiple quests at the same time if you see a number there

When taking the pterodactyl ride over, my DH's ghoul "swims" in the air over the ocean instead of disappearing during the flight.

I hope they never fix this.

Don't take this quest when it first pop's up either, because you'll miss a breadcrumb.

After The Betrayal of Zul a cut-scene plays, and you are pretty much left to your own devices. A whole bunch of new ! pop up, once of which is Terrace of the Chosen offered up by Baine, and another of which is Send the Signal down at the docks.

Baine's quest will stop you getting offered King or Prey later in the story-line if you take it - so don't coz it's worth a fair whack of experience; while if you take the other quest you'll miss out on Sending Out an SOS which isn't offered up until you complete To Sacrifice a Loa which ends the quest chain that offers up this quest.

Basically, Blizzard mixed up the flags for Baine's Sending Out an SOS and Terrace of the Chosen - since it makes more sense to offer up the first to breadcrumb to Send the Signal, and the second wouldn't be an issue for King or Prey as it pops up at the NPC whom you turn To Sacrifice a Loa into.