How do you get a wandering horse to visit you on Howrse?

this is help ifound quit easy to follow ( this is not mine)

Columbus

Challenge: 35 Lessons with your horses

Tip: you've got 11 days

Prize: A Ploutos' Parchment

Caesar

Challenge: Open 25 Horns of Plenty

Tip: This is the standard rate for winning a divine from Howrse. You'll get a free HoP from Lucy so do that first, Ceaser will give you back 3 passes. Do this challenge last (except your last log-on) in case you can't complete one of the others. You may want to wait until the HoP event, probably this weekend.

Prize: 30 diamonds

Lucy

Challenge: Play with companions for a total of 455 hours.

Tip: Foal games.

Prize: A Horn of Plenty

Càpac

Challenge: Participate in 358 competitions

Tip: You've got 11 days, BLUP some horses, you don't have to win, just enter

Prize: A Hera Pack

Ramses

Challenge: Log on to Howrse every day for 10 days

Tip: You don't have to play, just log on

Prize: 20 Aging points

Cochise

Challenge: Be congratulated 50 times

Tip: Congratulate other players, chances are they'll return the favour

Prize: A Philotes' Stroke

Khan

Challenge: Birth 9 Unicorns

Tip: You've got 11 days, take advantage of as many extra breeding times as possible

Prize: A Nyx Pack

Harald

Will come and visit if you've collected all other wandering horses.

Tip: The prizes are indicative of how difficult each horse is to collect