Soaring Spelltome

In the forgotten depths of the Dalaran library, this oversized tome was found flapping madly around the room. Open the pages of this arcane-infused book and hitch a ride to magical adventure.

Riding Requirements:

This mount is available to all eligible characters on your account.
Level 10
Apprentice Riding (ground)
Expert Riding (flying)

Source:

Achievement: A Tour of Towers

Notes:

This mount is awarded to players who complete every unique challenge during the special Legion Timewalking version of the Mage Tower in the Broken Isles. Legion Timewalking was added in Patch 9.1.5.

Introduced in:

Patch 9.1.5

Travel Mode:

Ground (+60% or +100% speed)
Flying (+150%, +280% or +310% speed)

Speed depends on your riding skill.

More info on Wowhead:

Soaring Spelltome taught by Mage-Bound Spelltome