In Soltra the Stone Charmer (The book), Tom calls for Arcta, and he appears immediately. I will be calcing the speed of this.
As the Northern Mountains (the place Arcta lives) isn’t on the map with the marshes (where Soltra lived), I will be seeing how many pixels below the marshes are than Errinel, and then see how far the Northern Mountains are to that point on the map with the Northern Mountains on.
Using this map first:
The marshes are 37 pixels below Errinel.
Now using this map:
File:Map of Avantia 1 for Arcta's Speed Calc
Assuming the volcano is a Stratovolcano, which can reach up to 2,438 metres.
Height of volcano: 82 pixels or 2,438m=243,800cm
Height of 1 pixel: 2,973.17cm
Distance travelled: 558 pixels=1,659,028.86cm=16,590.2886m
Assuming it took 1 second to get there.
Speed: 16,590.2886m/1s=16,590.2886m/s (High Hypersonic)